i have an 88 gxl, and while i was replacing the rear speakers, i found a harness containing 4 wires, one set in each bay. now there are two more sets of wires in the bay and i know both of them connect to the speakers, however in both bays there is 1 connector containing 2 wires, 1 connector containing 3 wires, (both these connect to the speakers) and 1 more connector containing 4 wires. ill try to get a pic here in the next few mins.

 

here are the pics, from the bay on the drivers side

 

nvm im an idiot

 

if i am not mistaken those extra 4prong connectors is for the "auto-adjusting" suspension motors

even if your car isnt equipped with the feature i believe they still give the electrical wiring the connectors anyways

 

here u are

 

there, as you can see the front is wired, and the switch is there.

 

thats for the rear amp i believe. that only some had

 

nope there is 3 connectors in rear tower area a 2plug for (+ and - ) for the speaker , a 3 plug (power) for the amp (with or without) and the 4plug for the auto adjusting suspensions