I was actually wondering something similar. I have added some aftermarket guages and stereo that draw power from the keyed 12v slot on the fuse box (female spade connector). Just last week I added a pair of electrical fans and dumped the mechanical, and it had to be hooked up to a keyed 12v source and the only one that I know of is the one that the other items are hooked to so I put it there. Now I've been thinking about it I dont like how much current is being drawn thru that one keyed 12v port when the fans kick on. Where else can I find another keyed source for 12 volts? Or what can I do to safely create a new keyed 12v port, or even upgrade my current one to be able to handle that kind of draw?

I havent had any issues but I have only run the car long enought to verify proper functioning of the fans going on and off at the proper preset temps. I dont want to burn my car up. Any suggestions?

Hope Im not hijacking

Thanks
roe