Just bought an 07 avalanche LS with 2 door speakers not working, radio seems to pick up multiple stations at one time and a couple buttons on the radio don’t work at all. Installed a new door speaker to replace one of the ones that wasn’t working after reading that was probably the fix and i still have no sound from that door. Thanks for any input.

 

It may be the radio crapping out. May I suggest getting on www.crutchfield.com and look at replacement stereos at a reasonable price. My son and I installed one of their stereos in a 2010 Silverado in one afternoon.

 

Here is the Boss Stereo we installed. The face constantly changes color for extra Bling.