hey guys, so i removed my d3 from my scion tc because i upgraded to a 920bt. i installed my d3 on my 93 mr2. it was basicallya plug and play installation because it uses the same wiring harness. the previous radio on my mr2 had a p. cont wire that connects to the amp. i disconected it and dont know where to install this wire on my d3. i think this is the reason the d3 plays music, but the subwoofer has no sound. if anybody can help me figure out where this wire connects to on the d3 i will greatly appreciate it. thanks in advanced.