I finally got around to installing the AFR gauge I've had for a few years.

I had installed my boost gauge and mechanical water temperature gauge a couple of years ago and then I did some wiring for the lighting of those gauges where I used a relay to power the gauge lighting when the parking lights come on. This AFR gauge has LED lighting and it is lit at all times but I've found at night, it's a bit bright so I bought a dimmer switch to wire in as well.

It got me to thinking: although I have no intentions of ever selling my car or having anyone but me ever work on it, should I make a wiring diagram for how I've wired the car? It's really basic electrical, so I cannot imagine I would ever have trouble remembering what I've done and I think someone with basic electrical circuit knowledge could trace wires and figure out where I hid the relay and power distribution bar. Besides, it's a Mini Cooper, there isn't very much car in which this stuff can get lost.

What wisdom does the forum have to impart on me about this subject?

 

Highly recommended you draw up a wiring diagram. When your memory grows dim, you'll be glad you spent some time documenting what you did those many years ago.

 

...+1 and keep a copy of it in the car.

Motor On!

 

Heck yeah!!!
I've also added some gauges and added a bunch of nifty lighting, relays, toggle swithes, 2wo sequence kill switches and modifications over the past several years...Although I'd failed to create a diagram and all my wiring is nice and tidy - I'll be dammed if I can recall what I've done even by tracing the wires.
Thank goodness everything I've done so far has been working flawlessly without a glitch for more than 7years now.

I've probably just jinxed myself right now...