I am trying to troubleshoot my 1999 TL's sound system. All stock BOSE system with stock NAVI. Speakers in all 4 doors and sub in rear deck......
I cant seem to find a difitive answer as to if there is an amp behind the right rear seat. There is an amp under the deck that seems to be related to the sub only. I need some advise as to where to look for pinched or broken wires (unlikeley), or unlugged connectors, or whatever could happen under normal use. I think I hear a relay-type click in the rear when I first turn the system on but I'm not sure if thats just the SUB-AMP turning on. Local CAR AUDIO SHOPS are more than willing to "take a look" but I do not trust them to have my best interest in mind ( I used to sell electronics ). I am planning to attemp to get the rear seat-backs out and take a look for the mystery amp and if it is there, maybee a connector got pulled when I had my baby-carseat installed, (not sure the fireman was thinking that here could be complicated electronics behind the seats when he wsa poking for anchor-points. Please tell me if I'm chasing unicorns looking for something behind the rear seat before I rip my car apart.

Thanks for your help and suggestions...

driscoll2@comcast.net

 

There is an amp behind behind the rear seat its relatively small and is behind a metal plate as the picture shows

 

Already replaced that amp with a duplicate-OEM and it did not solve the problem. Was hping for a rabbit inside a black hat but I guess the door panel will have to come off. Hate doing that for moisture seal reasons. Does anyone know the exact path of wires once inside the pillar to the amp? Also have a spare amp for sale or trade.. Ha / frown.. I would love tr replce the head but I dont want to loose my navi voice