Well now every speaker works but my right front speaker. However, the right tweeter works. It seems like the problem shifts around the car. I am taking the car in tomorrow....

 

Expect a $75-100 fee for diagnosing....

 

I already paid them. It still isn't fixed.

 

Yesterday, I went to the dealership with another amp that I bought. They installed the amp and I still have the same problem. After a little bit of a fight, they charged me again and said that they were done with my car since I keep putting "used" parts to fix the car. The tech claims that I now have a bad right speaker and another bad amp. Then the service manager told me that there is no way to test out the amp or any of the speakers to see if it is bad.

Needless to say, I was upset to the max. I called GM customer service and opened up a case that they did not fix my car but yet kept charging me more and more money. GM has yet to call me back.

I did however went to a local audio shop to see what they could do for the car. Come to find out, they were able to test out all of my speakers and the AMP. The problem with my system wasn't the amp like the dealership claim but a bad speaker (replaced the front speakers and the subwoofer) that was shorting out the system. The guy also tested out all 3 of the amps that I had and each of them worked just fine.

I am now in the process of getting my money back from the dealership since they didn't fix my car and had me without a car for almost 3 weeks while dealing with this.

I am not going to another dealership other than to change my oil.