Originally Posted by jikhead

According to the service manual, there are two pairs of wire for the "woofer amp. ON signal" and the "OFF signal". Input: (+) is 31 (white) (-) ground. Output: (+) 25 (green) (-) ground.

I would just run a turn-on wire to your fusebox underneath the driver side dash. Much easier and that's what I did for the amp. My amp had power and turn-on for a 2nd device or amp. So my converter is connected to my amp.