wiring a computer fan to cool amplifier

ok, i need to know how to wire up a computer fan to cool my amp the amp is to be located behind the left trim in the trunk of my explorer what is the best way to get power to the little fan? pics would help, thanks

The computer fan doesn't run on 12 volts.  Just buy a fan made for a car and you'll be a lot better off.Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Actually steve, many fans designed for use inside a computer case do run on 12v.  I've used them frequently in car audio.  I suggest to wire a relay that is switched off your remote-on power to run the fans.  12v computer fans use their black wire as +12 and the red wire is ground.Support the12volt.com

whoops...didn't do my homework here.  Thanks for the correction.Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

i have a 12v computer fan in my car and red is power and black is ground

Wire a relay to turn the fan on with the remote turn on lead from the deck. Certified Security Specialist

Always check info with a digital multimeter.

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is this the right relay? http://www.crutchfield.com/S-mBy8SC1KQ7K/cgi-bin/prodview.asp?i=120E5000 so let me double check this to make sure i got it right: 1) a wire runs from the battery to the 87 slot on the relay. this wire should be what, 16g, 12g? 2) the remote lead goes from the head unit wire harness to the 86 slot 3) the 85 slot grounds the whole thing 4) the 30 slot has 2 wires coming from it: the black wire for the fan, and the rest of the remote turn on lead that continues on to the amp now, what about grounding the fan, does this mean i have a ground from the amp, a ground from the relay, and now a ground from the fan, meaning 3 grounds now? double check my work if you could Finally, what is the best way to mount these fans? It seems you recomend 2 fans, does that mean one to point air at the amp, and one to suck hot air away? The amp will be mounted behind the trim on a piece of wood in the trunk of my explorer. Would I be ok just putting a(the) fan(s) on the wood, or should i cut a hole in the trim and mount it(them) there, so that fresh air can get there? Lastly, are these things real noisy, or will it not be a big issue? thanks again

what about just running an extension of the turn on lead from the amp to the relay instead of splitting it? wouldn't that work?