Originally Posted by J.lafriend
I replaced the fast interface harness that came with the smaller BTA 8100FHC with a heavier gauge wire harness. 8 gauge wire for power and ground, 16 gauge for the amp turn on lead and monster cable RCA cords.
Intermittant issues are always a bit tricky. Check all of the connections on the power cable; at the harness of the Tube, the inline fuse holder and finally the postive battery terminal. Use a DMM if you have one handy. Be sure to do the same with the ground connection and the ground terminal.