Chevrolet Repair: keyless remote/ radio amp, aftermarket radio, programming issue

Question
what will cause the keyless and amp for speakers to stop working, have check the fuse and change the keyless remote battery and check the wirer to the amp.

Answer
That all depends on what car, truck or van...What model are you talking about.  Some cars, it's just a programming issue that Has to be done at the dealer, other times it's the radio itself.  Do you have an aftermarket radio in there?  That will stop them from working too
Jimmy