This project comes straight from the "I just can't leave well enough alone" department.
It all started with this problem, which is painfully documented here:
http://forums.pelicanparts.com/porsche-911-technical-forum/994379-frustrated-fuel-pump-circuit-help.html
Don't bother reading all of that. I will spare you. Faulty factory alarm module was the source of the mystery ground that kept the fuel pump from running.
At the time, I fixed the issue by finding the wire connecting to pin 85 of the FP relay and disconnecting it. But I never knew for sure what was causing the mystery ground.
Well, that continued to bother me. So like a moth is attracted to a flame, I had to find out. I finally found the time to remove the fresh air blower plenum to access the alarm module. I traced the wire out and proved once and for all it was indeed a faulty alarm module. Alarm module was bypassed. Problem solved for good.
But with that fresh air plenum out of the way, all of a sudden the temptation was there to re-wire the stereo amp and relocate the subwoofer.
I guess it was around 2012 or 2013 that I re-did the interior and installed the stereo system.
The way I originally solved this problem was to use a piece of 1/2" MDF as a mounting surface for the amp and crossovers. I attached this to the fresh air blower cover by drilling holes through the supports and using some long carriage bolts with nylon spacers, washers and wing nuts.
The idea here was that I could just spin off the wing nuts to remove the mounting board if I ever need to access the area behind the dash or the smuggler's box. I left plenty of slack in the wiring so it did work, however it was still annoying because I couldn't take it out of the car to get it completely out of the way.
But it looked pretty clean and was it was functional.
Another drawback was where to put the sub. I had it mounted in the back seat, but I didn't really like it there. It got it in the way and it didn't look very clean.
Finally, there was one more important consideration. Since time immemorial, there has been a debate between good sound and weight savings.
If someone says you must choose between a Belgium dubel or German pilsner, what do you say?
Well, I decided to do what any rational person would do. Choose both!
