Originally Posted by Gunn
OOOOO, OOOO, OOOO, I got it, I got it, that is simple,
Constant 12 volts goes to the battery. That is the safest place to get it. Use appropriate gauge wire, and Fuse.
Accessory is available in the fuse block. No need to find wires.
Just buy yourself a Test Light (or a multimeter if you are actually gonna do carputer stuff) and see which one has no power with the car off. Then, after you know which ones have NO POWER with the car off, turn the Key to the run poosition (The car need not be running, just the key in the run position) and see which one of the previously found fuses NOW HAVE POWER. VOILA, you have switched power.
Just use one of these http://www.radioshack.com/product.as...ct_id=270-1204 to connect your wire to the fues.