One day my bass and trebble buttons quit working completely. I cant believe that both switches could go bad in both directions. Its like something locked it out, is there a way to fix it? Everything else works fine.

 

Mine did the same thing in my old 95 V 6 Camaro...never got it fixed till it got wrecked and i bought a 96 Z....maybe you just need to buy a newer car

 

I just got this one in october.