wait, halt.. im rethinking this. I've heard recently that signal cable (ie. speaker wire) doesn't require the 18 AWG wire that we usually use to upgrade it... apparently its all overkill. The car's original wiring diagrams are available off of forums, and can be tapped into and utilized to run after market equipment - several people have done this, and claim there is no sound loss/electrical issues. this type of jig would be cleaner, easier .. smarter?
talk to me.