ok so im installing my black magic fan and have a few wiring questions cuz im a lil bit confused...

in the directions it says connect the "B" terminal to a high current 12v positive source (battery) with the 25A inline fuse...which i did

a few steps later in the instructions is says

connect the "+" terminal to a 12v positive power source (i.e. fuse box) NOTE: attach to an ignition controlled source to stop fan when vehicle is shut off, attacvh to a non-ignition controlled source to keep fan running after vehicle is shut of.

so my question is, what do i attach this too? where? how? what the hell!?

 

the + terminal controls when the fan runs or not so just attach it to a ignition on supply
so it just runs when the ignition is on.

 

im not that great with electronics...so how do i know which wire do i attach it to? one of the ones comming out of the main fuse box? whcih one?

 

or do i need ot run it all the way into the cab? or do i run it to the ignition wire going to the starter?

 

the one marked B do as you have said with the fuse in line

you then need to find a switched ignition live you could do with a test meter/lamp of some sort.
there are quite a few under the hood like the wiper motor for instance could tell you what colour wire it is though off the top of my head.

 

awesome thanx a bunch

 

should have said could'nt tell you what colour wire it is not could.

makes me sound a ignorant B&£T%£D

 

Aaroncake has a great writeup on how to wire the fan to run only when its needed. http://aaroncake.net/RX-7/efaninstall.htm
If nothing else, it has some 12V sources at the bottom of the page.