well i got everything done but Im a bit puzzled. With old deck the mew subs made noise. the New deck with a wire harness that plugs into the cars, I dont seem to be getting any bass from the rear speakers. Am i correct in thinking I would have NO sound if the amp was not turning on? Front speakers would not make noise either?

I hooked up the new subs with the original deck, they where working just fine. I then put the new deck in and now just the door speakers seem to work. Maybe the amp just cant pump those new ones good enough.. but then .. the old deck was. IM just a bit stumped.