I was able to kill the turn-off thump from the subwoofers by adding a small wire to one of the RCA jacks and grounding it. My remote wire for amp turn on is running to an empty slot in the fuse panel (position 31 I believe) which gets power only when the switch is in the on position. To fuse the circuit, I put a ten amp fuse in that location with the remote wire wrapped around 1 of the prongs (use the side that doesn't get power with the key in the on position. Works perfect. One side effect though to my sub/amp install... cutting off the head unit using the power button causes feedback in the sub (endless bass tone). Btw, I fed the audio from factory radio using the rear speakers' wires to the MTX electronic crossover. Then, I used the RCA outputs from the crossover to feed the sub amp.
07 Accord V6 EX-L
Last edited by Lance L-Dogg Mason; 03-09-2013 at 12:52 PM.