Okay...so they don't have a 'brick & mortar' facility...that just means lower overhead, along with the fact that they come to you, it's a win-win! David and Dave installed a new Alpine Halo' system, along with new speakers and XM receiver in my 2005 Duramax. They even installed a new door latch / sensor for me while they had the door panel off. After doing my online research regarding audio installation reviews, l quickly narrowed my choice down to TWELVE VOLT TECHNOLOGIES. I was very impressed with David from the very first contact l had with him. He was very quick to respond to my email and was able to supply everything on my wish list. They arrived on schedule, started working immediately after asking if l had any questions and was done and complete around 4 hours later. David took the time to go over operation of the new unit and answer any questions l had. I would recommend David to anyone that is concerned about the quality of work performed on their vehicle. Trust me when l say that l don't let just 'anyone' work on my truck. Kudos to David and Dave for a job well done, and another happy customer. read more

Simply AMAZING high quality workmanship and attention to detail! I had them install and alarm, new Sony head unit, an amp, sound deadening and a ton of USB power outlets in my 2025 Chevy Express 3500. Was expensive but work was done PERFECTLY! Highly recommend! read more

Absolutely amazing!!!. These young men are kind, respectful, and friendly. On time, respected my truck, picked up any trash, went over everything with me. Saved their contact in my pone for future work on other vehicle. Thank you guys for being amazing. read more

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I attempted to hire Twelve Volt Technologies to hardwire and install a dash cam for my Lexus 12 Volt does not actually speak with potential customers, like myself...but arranges for a email communication thread. I attempted this....and found that system failing....unable to ask pointed questions. Ultimately, 12 Volt just did not return my emailed questions. I wanted to utilize their services....as they are highly rated. Had to move on...... Twelve Volt should reconsider their method of customer service and communication. read more

Exceptional talent. Highly recommend. David is an expert. Can't highly recommend enough.

David was right on time and was able to complete the job in about an hour, I would definitely recommend him if you need acar stereo installed read more

They installed the a radio for my wife's 2016 RAV 4 replacing the one that had become haunted and installed wiring in the dashcam camera in my 2023 Ford Maverick. Both jobs were done were well and carefully. The installations were clean and they listened to us as to how we wanted the job done. My Maverick has a has a rear window with an opening and they were able to route the rear camera wiring so the window opened without the wiring interfering. I am planning on using them to install a Ham Radio in the spring. read more

This was such an easy process! I wanted carplay in my 2017 toyota corolla and I had no idea of what that entailed. When I looked around to see if Best Buy could do it, they told me I need to be order extra parts from other places since they were sold out. I realized I just wanted to get it done ASAP and Twelve Volt Technologies first asked a few simple follow up questions I didn't think about and then gave me a few estimates with everything broken down. I thought they were transparent, quick, and professional! Now I have my carplay and it looks perfect! read more

I had a two channel dash cam (front & rear) installed on new van. David & David were the servicers and provided exceptional customer service. They arrived early and installed the dash cam (wires hidden) in no time. The explained everything in detailed and it's nice to know their work is under warranty. I plan to spread the word to family and friends. Recommend going with no one else! There is a reason why this company has 5/5 stars. and 100+ reviews.... read more

Was looking for someone to install my stereo and Rockford Fosgate speakers in my 1966 Mustang and Twelve Volt Tech delivered. As you know, having a classic like this means you don't just leave your car anywhere. Twelve Volt brought Amazing service, great communication, clean work, respect and honesty. Can't get any better than this. Now I can cruise with my tunes! read more

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I cannot say enough amazing things about this company. They are a mobile service. David is the best. He installed new systems in my car and my husband's truck. He stands by his work. I have had a few issues with my connector due to phone upgrades. He will always say it's under warranty and won't charge me. He works on cars, boats, whatever you need. Highly recommend. His worker also named David is just as great too!! read more

David provides a great service. He is very professional and knowledgeable re: audio systems. He was polite, trustworthy and fair priced. He took the time to communicate with me and answer question. High quality work. In my case he replaced my stock speakers & installed an amplifier. read more

Great service from initial contact to completion of job. They came out on time and did a great job. We had a Viper alarm system installed in our 1999 Honda Accord. Great communication from start to finish! Thanks David! He was the best! read more

I have a very special 2002 Ford Thunderbird. I mean special due to the fact that they are rare and weird things come up. I was having Issues with something killing my battery. so needless to say I was going through batteries. Belong to a Ford Tbird forum and few people had the same issue and said it was the radio. After researching came across Twelve Volt Technologies, read ALL of the 5 star reviews. was very impressed thought I would give them a shot. Boy was I glad. I was so impressed, he checked all the boxes from customer service to figuring out the cause to the mystery of the dying batteries and it wasn't the radio after all. He went on and beyond anyone else would have done. Even the Ford dealership couldn't figure it out. I can go on and on. Very ecstatic I can now cruise my tbird with my top off, just in time for summer. I will for sure use him for my next project and have told all my friends about David. Thank you again.... Love, CACRUSR read more

I just can't say enough good things about David and Twelve Volt Technologies. I liked the new car stereo he installed on my Nissan Leaf a few months ago, that I had to have him come back to put a system in my Toyota RV too. Now I feel safer with backup cameras in both cars, plus my audio systems sound wonderful. I highly recommend David for your car stereo or camera add on. His mobile service is super convenient, and he is very punctual. read more

All of David's reviews are ON POINT - He is the most friendly and professional installer that has a true passion for his craft! He has completed installs on 2 of my vehicles and I could not be more pleased with the new audio systems and reverse cameras that he put in. Most importantly, David absolutely stands by his work - There were a couple of minor issues with one of my vehicles related to the new audio system and he came back and made everything right. He also won't install anything that he can't explain/show you how to use - He's so great about making sure that you're happy with the equipment and know how to use it! Thanks so very much David - Looking forward to seeing you again soon for installs!! read more

I'm delighted with the work David performed on my car - installing an aftermarket CarPlay retrofit for my BMW. Having dealt with car stereo installation and service for many years on various cars I am very aware of all the excuses, stories, and drama from some installers. There was none of that from David. He is honest, knowledgeable, and is clearly committed to excellence and getting the job done right. Initially I had called a well known local high end installation shop that I've previously used several times in years gone by for this install. The service tech that I spoke with told me over the phone how "difficult" the job would be, that my car was "special" and would cost more money than a regular install, and lastly being told there were no appointments for at least 30 days. After hearing all that drama, I was done with them and looked on the internet for an alternative. Thankfully, Twelve Volt Technologies was one of the businesses in my search results. In comparison, the appointment with David was scheduled within a few days. He arrived on time (actually a few minutes early), knew exactly how to handle my hybrid BMW electrical system, and patiently found the best solution for the aftermarket CarPlay install. His work was professional, clean, and drama-free. And when you schedule with Twelve Volt Tech, you get the owner / operator of the business to do the work, not a trainee. David clearly has a passion for his work and enjoys what he does. I was so impressed that I bought another aftermarket unit to install in another one of my cars and will schedule another visit from David in a few weeks. Repeat business is the best measure of customer satisfaction. As far as I'm concerned I will happily use David for all my car audio needs from now on. 'Nuff written. read more

Twelve Volt Technologies - CarPlay on my BMW display screen. - Car Stereo Installation Near Me

Dave and Dave were great to work with. Install was fast and clean and communication throughout the process was great. Would highly recommend. Thanks Guys! read more

Highly recommend! We got a dashcam installed, and the product that they offered and installation service were great!! Everything was easy, smooth and fast!!! read more

As a mobile biz co-owner I love dealing and supporting other local & mobile companies. We had bought DVR unit and needed help installing it in our Puppyness mobile grooming van as an addition to our camera monitoring system for recording. Was considering doing it myself but Im glad I contacted David from 12V. He gave fair estimate and was very committed to the the project from the start. Was familiar with equipment and RearView brand and the manual so must have done the research in advance. Came in week before for consultation and took time answering all the questions. Week later 3hr installation went very smoothly and pro. We also needed to fix few lights and connect fantastic vent. Very happy with the install and getting to know Dave. 12V rocks!!! read more

Twelve Volt Technologies - Car Stereo Installation Near Me

David offers absolutely top-notch service in every category; I highly recommend him and Twelve Volt Technologies! He was prompt in responding to my initial request, on time arriving at my home (another huge benefit!), installed my dash cam, thoroughly and patiently explained everything I needed to know, and left the work area spotless. On top of it all, he is extraordinarily pleasant and enthusiastic; he clearly is knowledgeable and loves what he does! If you need any electrical work in your vehicle, you won't be disappointed with David. read more

David was super helpful and professional. He installed a central locking system in my doors on a 1984 Toyota Landcruiser, basically so I could use a remote to lock/unlock doors. I also have a dual battery, solar panel, and a lot of additional electrical that has been done on the car from the previous owner. David was nice enough to let me talk his ear off for 15 minutes about my options of hooking things up, what I was capable of with my current setup and his recommendations and future electrical work, he didn't have to chat with me but he did and I appreciate that. I'm going to use his expertise to hook up a winch and run some electrical to the back of the Land Cruiser to run a fridge in the near future. He was on time, pleasant to work with and charged fairly. It's not a coincidence he has all 5 star reviews. Thank you again! read more

Absolutely amazing service. David was on time to our appointment and completed the service exactly as requested. He was fast, friendly and very experienced. The best part was that it was extremely convenient for us since it was a mobile service. I cannot thank David and Twelve Volt Technologies enough - I will definitely be contacting them again if we need any additional work in the future. read more

These guys are simply the best. I had a few questions after a project they did, and they came out on a Sunday to ensure everything was perfect, answered all my questions, and made sure I was taken care of. And for that follow up visit they charged all of nothing! Incredible service. You can't go wrong with Twelve Volt. read more

Great costumer service, very knowledgeable, great pricing, and got it done in a timely manner. After having a not so great experience getting a sub replaced from an audio shop, I decided to look elsewhere to get the rest of my speakers replaced. I got in touch with David who was very helpful with getting me a quote and scheduling an appointment for all 4 doors hooked up with a new audio system. David and his fellow tech came out to me and were very helpful with informing me with everything that was getting done and answering any questions I had. Their mobile service is very convenient and friendly, I got to be in the comfort of my home while the worked on my vehicle. I will go with Twelve Volt Technologies from here on out for any future work I want done or need for my vehicle. read more

I reached out to David and Twelve Volt Technologies because I needed some audio work done on a new boat my wife and I purchased. He was very patient with us and walked us through multiple different estimates covering a variety of options and explained everything along the way. The day of the install, David showed up on time and was completely professional. He installed 4 new speakers and an amp in a 24' Yamaha boat. Everything went perfectly and his work looks like it came that way from the factory (except sounds a million times better). My wife and I couldn't be happier and will be doing all our future work with David and Twelve Volt Technologies. read more

Twelve Volt Technologies - Car Stereo Installation Near Me

This business is legit. David responded to all my email questions, provided me with multiple estimate options for my 2015 mustang GT, added carplay and a hideaway kicker 10 sub. Great sound! He arrived ontime worked hard and even returned after to help me with a better user demonstration. read more

I found David (the owner of this business) by doing a Google search after I got bad vibes from my 1st choice... a brick-&-mortar installation shop. I'm extremely happy that I stumbled across him. I'm a very technical person, and had already scoped out and documented my 3 part RV Audio Replacement Project (Mercedes OEM to Kenwood Android Auto Navigation Receiver) the way I wanted, and purchased all my equipment from another source way before I found David. I just needed a competent installer to work with me on my project scope since the technicalities of this type of project work was beyond my personal experience. Not once did I feel that David was put off by a "know-it-all" customer! LOL I'm sure he would have preferred that I had purchased all my equipment through him instead of my other source, but it just didn't work out that way.... David eagerly took me on as a customer anyway! In a very professional manner, he took my project scope, marked it up and gave me his alternative ideas. He gave multiple options and quotes to evaluate. Part 1 of my project is completed and I am happily busy checking out and enjoying the installation that David performed. One of the most important aspects of this project for me was... I was able to sit there and watch while David ripped my RV Cab Dash Area apart, pulling out the old Mercedes Benz Head Unit and tracing & pulling old wires, and installing and testing new wire connections... watching him do his thing was like "poetry in motion"... I was very impressed! To allow this was very important to a technical person like me. This would not have happened if I had gone to a brick and mortar shop to have this installation work performed. A definite plus when dealing with a competent mobile installer! When I get ready for Parts 2&3 of my project, David at 12volt.techs will be the man! Greg read more

David is a true class act and runs a great business! Do not hesitate to contact him! This was my second time using Twelve Volt and both times I was impressed by his work and professionalism. A major bonus is having him come to your place to do the work. This time I had David install a new head unit, backup camera, amp and component speakers in my Yukon. I also found out that he is an authorized Alpine dealer so he was able to save me money by purchasing through him. Great communication and he showed up 15 min early to my appointment. Install went perfect. He even came back when I freaked out that the dash lights weren't turning on even though it was just the dimmer that was off. I won't be using anyone else now! read more

Found Twelve Volt Technologies on Yelp with solid 5-star review, and David definitely lived up to them! Requested AND received education to select the optimal back-up camera for a 24-year old truck, scheduling went smoothly and day of installation he called to see if they could arrive early! Had follow-up issue (user error!) that resolved itself, but he was more than willing to make a follow-up visit to help! Highly recommend for professionalism, quality and price. You can't do better! read more

David is excellent. I'm lucky to have found him. The pricing is excellent, work was done fast and quality is also superb. He got my bluetooth module installed into my stereo in just under an hour. 12volt for life! read more

David promptly and professionally installed a new car stereo into my Audi. He was very communicative and helpful throughout the process. Honest service with a smile, at a reasonable price, by a nice hard working guy. Can't say enough good things about him and his company. Thank you! read more

They were very professional and took care of my situation the first time. Followed up to make sure everything was taken care of. They handled multiple issues with out looking to gauge me for additional charges. I will use them again and highly recommend them. read more

Twelve Volt and David are the best! Responsive, knowledgable, friendly, and MOBILE! The scheduling ease and expertise that David works with are unmatched. This was already my second time working with him, and I am so pleased - I am a lifelong customer. Thrilled to have people like David around to give fair and honest estimates and do incredible work. Thank you Twelve Volt Technologies! read more

I sent a paragraph out to about 12 different companies explaining the work I wanted done on my car. Some gave me just a price, a few words and a price or nothing at all... but David wrote me back a long paragraph explaining the different levels and price ranges that I could go with. He gave me a rough estimate right off the back and pretty much stuck to it even after I changed the manufacturer! We chatted back n forth for about a week and after looking at David's yelp page and all of the great reviews and chatting with him I decided to go with him. After I decided to go with David I looked up Mobile Electronics Certified Professional (MECP) Advanced, that he currently holds and I was very impressed! He met up with me one the day we decided and at my place of work! He installed the system perfectly, even buttoned up some work from a previous installer! I'm definitely going to have David install my new security system on my car very soon, he even did the research for me and gave me more options! This guy is awesome!! Thanks David for the great work! Nate read more

I wouldn't recommend his company to anyone. Only wants to deal through texting, doesn't want to talk to you on the phone, says he's to busy to take the time to call you. read more

David at 12 volt tech recently did 2 Aukey Dash cam installs. He had previously done a dash cam on my tacoma 2 years ago. I had a good experience then and called him back to remove the old dash cam (which shorted at 5 years of use) and have him re-install an Aukey Dual dash cam on my tacoma and also do a new install on my Wife's Lexus. The whole process was clean, professional, and done in a timely manner. I would definitely use David again for any of my electrical car needs. read more

Service, knowledge, and professionalism is hands down the best in the area. As the service industry becomes far less personal, David and his team bring it back to white glove. Dedication and a customer centric approach right in my driveway. Can't beat this in anyway. read more

I'm so happy I found Twelve Volt Technologies. From the initial inquiry to the finished product, David went above and beyond to make sure my car was done properly. I cannot thank him enough! He knows his stuff and does quality work that you can trust. Simply put, if you want proper work done with outstanding customer service, Twelve Volt Technologies is the way to go. I have certainly found my go-to company for my car's audio/infotainment system needs. read more

I have lived in San Diego since 2008. This was easily the best car experience I have had since I have lived here. My issue was, car stereo was not working at all. No power to the amp or stereo. Like a dummy, I asked Best Buy first and they were like, it will be 100 just to look at your car and then we will go from there. Our next available appointment is 2 months from now. Pffft, yeah right. I messaged 12 Volt Technologies and here is why you should too: 1. Drives to your location. This should sell itself. Amazing. 2. Up front about everything. Will walk you through what he thinks the problem is and why. 3. Doesn't upsell anything. Will make suggestions so like in my case, my car doesn't catch on fire due to a previous fuse box hazard, but if you want to risk combustion that's on you. (I went with the new fuse box) 4. The price is amazing. Not going to go into it since every car/situation is different but his price for labor + parts was lower than what Best Buy would have charged me just to look at it. 5. More important than anything else, he knows what he is doing. I have no doubt that if any other stereo issue pops up, he will be able to help. Great job, thanks for making it so I don't have to enjoy the stupid silence anymore! read more