fan question

[req 5,000+ posts]

i am a big computer junkie. problem is, if i hook a 12v fan up to the 12v from a car, it will continiously run. how do i hook this up to the car so it only turns on when the car is running (or the system is running for that matter) does that blue 12v wire stay on continious? does it even have like .25amps of draw to drop a fan in the loop and still poweron the amp?

or do\should i make a circut of some sort (any links?)

ive seen this done before many times. thanks for the help =)

thanks for the help. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[warrmr]

hook black upto ground and red to switched 12v (orange i think)

 

[Trixter 10+ year member]

Run the power to the fan from your remote line going to your amp and then just ground the fan. You won't have any problems. I used to run 3 fans with 3 amps this way and never had a problem.

 

[Acidburn 5,000+ posts]

if you are concerned about drawing too much current through your remote lead, use a relay, they are really easy to use

 

[req 5,000+ posts]

so if i run the fan off the remote wire then the fan will turn off when the amp does?

cool =)

thanks alot! :thumbsup

 

[disturbed_cbr 10+ year member]

I run 2 fans off the remote wire and ground it that same way and have had no problem either. After all they only draw like .15 and the other .20 amps. so almost no current draw from them.