I have an 09 ltz. The shop is saying that the system in my car shorted out the bcm??? Any body have a clue if that's right. I talked to my guys that put it in and he said it just communicates with the radio I haven't had a problem with the first system I had in it. I am running a pioneer head unit kappas in the doors and the back deck 2 amps 2 ps 12s and a battery in the back. It hits really hard but I don't see that cooking the bcm twice. Every time it's wet out it seems to have a problem. I can pound the shit out of it and no problem. Somebody help!!!!