My 96' Electra Glide I ride to work one day the left speaker went quiet. I had just had the inner fairing repainted and installed by a confident mechanic. the speaker is really faint and scratchy. I just hooked up another speaker to it and it sounds the same. I am thinking a possible ground or pinched wire. Was looking for some opinions to see if I can get it figured out before tearing into it. I did not have this problem before the fairing was removed and replaced. Any suggestions to get me started would be helpful. I am planning on working on it this weekend. Thanks in Advance!