so heres the deal, i work for a car stereo company we had a customer come in with an 04 coupe. we installed hid low beam kit with the 4700 caps in place to eliminate flicker, we also installe da single din radio with the correct harness all clean and professionally done. a few days after the install the customer calls and says that his locks stopped working the gas door is locked up and wouldnt open and of course the spoiler was acting crazy. we offered to look at the vehicle which we did. #7 fuse was blown and keept blowing after we put a new one in. we informed the customer (after some google search) that the bcm was probably toast. he had the car towed to two different shops the latter being the dealer. they diagnosed the problem as a bad bcm replaced it and all was good. the problem is that now the customer is expecting for us to pay for his tow bills and for the bcm and labor. there were no problems found in our work but the customer insists that it was our fault and took it to small claims court. So the question for you guys is how common are BCM problems with these cars and what is the most common source of the problem? Thanks in advance for any info that might just keep us from paying a almost $4000 lawsuit.