Just installed the Biketronics 4180, Line Levelers, and harness. All is well except my left rear speaker has no sound. Any ideas would be appreciated.

 

I would start by checking all wiring. Unplug all the speaker plugs and carfully check to make sure all the pins line up and none have been pushed back or out of place. Do this on the breakout harness also.

 

Try swapping RCA cables and see if the problem moves to the right.

 

Checked the pins, all looked good. Also checked the plug in cables, still no sound from the left rear speaker. I did unplug the breakout harness, plugged the stock one back in and the left speaker worked. Any more ideas or thoughts

 

Call Bill at BT tomorrow.