The first time I went to them for an amp replacement on my 2012 Audi a4 , they did a great job back in 2020. I recently went back to get a side speaker put in my front door because it was blown and after they replaced it is was rattling bad when I had the bass on. It did not sound like that before I went to them so I scheduled a recheck appointment. When I went back, the apparent "head audio expert" told me that the problem is that I need to turn my bass down, he could find nothing wrong and that basically in a nutshell it's my fault for the rattling. Soooo...he's telling me that my Audi A4 cannot handle the factory speaker and system that it's meant to handle?! Then he goes, don't worry I turn the bass down for you! And that was my recheck!!! OK I am a girl but I am not stupid, so I had my mechanic friend look thoroughly at it, take off my door panel and what the problem was that they cross threaded a screw (basically put the screw in not straight) putting back together my panel to the metal door and completely screwed up the bolt and screw wasn't even tightened and obviously they had to of known bc it wouldn't go in all the way but they said screw it apparently. They also did not put back 2 other screws. Since the screw was cross threaded, my mechanic and I sat there for a couple hours trying to get this stuck screw that took off a piece of my car metal bolt and was not budging finally free from the door, there was no other option but to rip it out and now there was no way to put a new screw in bc the bolt was gone. We ended up putting some foam between the metal door and panel so it doesn't rattle against it instead of the screw bc of their negligence. Thank god for my mechanic that took the time to correctly diagnose their mess up. how dare they not to even fully diagnose the recheck when they did it! And to tell me I can't have my bass so high ! What a joke . read more