89 lincoln towncar

i need the wiring pin-out for the factory amp both sides if possable

Whats the game plan...? What are you doing...?There is an amp intregration harness available...And on some fords/mercury/lincoln...there is an amp bypass harness(not sure if that applies here...?!)M.E.C.P & First-Class

Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

i'm integrating an aftermarket  4 channel amp after i replaced the factory speakers 

more or less i want to retain the factory wiring and not have run any aftermarket bypass harness i have removed the ends of the factory amp after it stoped working and remounted them on a pcb board in a project box i have already soldered in wiring from the radio side by the pin-out from the aftermarket metra plug  to the amp plug i just need the other side i know which ones are power on the power/speaker plug so i can solder it to the pcb if  there's not a pin-out for it i'll figure it out by re-pulling the speakers and wire-coding them

So you need from the amp to the speakers...Can test w/ a multi-meter...Or bust out the drill battery and pop each speaker...if speaker goes in ...switch polarity...If speaker pop's out...Correct polarity...! Also the amp bypass harness might just plug right up and give you polarity and location...Then you could just cut an end off of the 2-ended bypass harness and wire from there...M.E.C.P & First-Class

Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!