Lots of weird wiring and dead ends

[EdandQ]

I'm starting to try and clean up all the wiring as there are so many dead ends. I used to have the under dash a/c which is now gone, and the car has had a few iterations of stereo's over the years, and at least one alarm system, maybe more.

So.... the attached picture is under the passanger dash. This wiring bundle seems to me to do nothing for the car and was probably from the alarm system. It goes into the door, for what I don't know. The other wire is a speaker wire, that one I get, but the other seems all extra, thoughts?


Thanks so much,
Ed

1976 911S

[Danny_Ocean]

I have/had the same mess. Just take one wire at a time and track it down, end-to-end. That's really the only way. No shortcuts with this task.

[yelcab1]

The alarm's wiring for the actuator for the door lock

[Porsche-O-Phile]

Originally Posted by Danny_Ocean

I have/had the same mess. Just take one wire at a time and track it down, end-to-end. That's really the only way. No shortcuts with this task.

+1

Wiring diagrams are your friends. That and a multimeter with really long probe wires.

A regulated 12V power supply is an invaluable tool as well for testing to see whether components work or not, and for determining whether the wiring at the switches has "confirmed" continuity to the components in question once you've gotten an initial "zero ohm" resistance on the circuit.

[Noah930]

Just remember: All PO's are idiots.

I took a peek behind the fuse panel in the front trunk of my car last month, and found newspaper twine (albeit done pretty neatly) in place of heat shrink tubing in the harness.

[gsmith660]

Doing the same thing. Have got it to the basic harness and am now making all new harnesses for all the extras. Bought shrink tube in bulk for the task makes it all look factory. and am now in the process of updating the fuse panel