How easy is it to wire a fan switch in so I can turn on my fan whenever I want?

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1985 Camaro Z28
minor mods, wires, filters, etc., Accel SuperCoil/cap/rotor,
305 bored .030 over, new pistons, cam, lifters, timing kit, water pump, high-flow cat (3" out), Dynomax Afterburner muffler (2.5" out), O2 sensor, MAF sensor, 160W JVC head unit, Rockford Fosgate Punch 360 amp, 2 JL10W0 subs, custom box.
"You may laugh in the face of fear, but it'll be a nervous, unconvincing little laugh."

 

Also, from reading some of the other posts it seems like a lot of cars have dual electric fans whereas I've only got a single. Is this normal? Also, my car is displaying the same symptoms as a few of the others: at speed, it's below 160 degrees, but stop at a light, and watch the needle climb into the red. Is this something as simple as replacing the sensor? If so, where is it located? Thanks guys

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1985 Camaro Z28
minor mods, wires, filters, etc., Accel SuperCoil/cap/rotor,
305 bored .030 over, new pistons, cam, lifters, timing kit, water pump, high-flow cat (3" out), Dynomax Afterburner muffler (2.5" out), O2 sensor, MAF sensor, 160W JVC head unit, Rockford Fosgate Punch 360 amp, 2 JL10W0 subs, custom box.
"You may laugh in the face of fear, but it'll be a nervous, unconvincing little laugh."

 

It's easy. I've seen this question so many times I think someone needs to do a tech article on it. I have a single fan too. I just tapped into the power wire going directly into the back of the fan motor. Hook up a switch to 12 volts and wire it to the back of the fan. If I get a chance I can post pictures.

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'91 RS 3.1
SSM SFC's
Energy Susp. Hyper-flex kit
GTA Sway bars
Clarion, Phoenix Gold, JL Audio, etc.
Quote "If you can't beat them, arrange to have them beaten."
- George Carlin