Don't know if this is the stupidest thing I've done yet but it has to be close.
Battery dead after setting for about a month with a trickle charger on it. So stupid me connected a car battery charger to see if it would turn over. In doing so I guess I fried something, (thinking it might have something to do with the volume control) radio still plays but a lot of noise and only popping and cracking out of right speaker, left speaker plays but not a lot of volume.
Thinking volume control because it seems to make a difference when I move it around. Is there something else I should check before replacing the switch? Thanks for any help you might offer. Forgot to mention that it is a 2002 Electra Glide Classic.

 

forgot to add that it is a 2002 Electra glide classic

 

Have you fully charged and tested the battery yet? Low voltage will play weird tricks on your audio system.

 

yes I installed the new battery and everything else works fine.