Painless wiring???

Here's my .02
A large pecentage of any vehicles problems are electrical. Having factory wiring diagrams along with a general knowledge of DC circuits are priceless when trouble shooting. This is why I wouldn't give a nickle for any aftermarket wiring harness.
I did need to make some changes and upgrades to the factory harness though.
I found digital copies of the factory wiring diagrams and used Windows Paint to modify them so they show the changes. These drawings were then printed and placed in the owners manual jacket in the glovebox. The only thing I still seek is nice vinyl stickers for my relay enclosure and sreviced side the instrument panel that read "see owners manual supliment" .