My first question is, doesnt this model have two amps in the trunk? I can only find one. Its a 6 speaker system with subs in the door.

Second, my L/D switch on the head unit doesnt do anything. The reception stays the same. Does this power the antenna signal booster on the power antenna? Could it be that the booster amp is bad? I have not so great reception and have a difficult time pulling in stereo signals.

Thanks
Ed