Accessory Wire - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 6 Old 06-02-2010, 09:12 PM Thread Starter
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Accessory Wire

I am in the process of installing a computer system in my jeep. I am leaving the stock head unit in but I still need an accessory wire. I drive a 2007 Sahara if that helps. Is there a way I can find a lead that is only hot when the accessory switch is turned on? Thanks for any help.

PS. If the computer install interests you, you can follow my progress on that here

Eventually it will control media, highway/street nav, and have topographic maps with gps overlay. I may eventually plug it into the OBDII port for in-car diagnostics and instrument monitoring.
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post #2 of 6 Old 06-03-2010, 02:10 AM
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In the steering column there is a wire that is PINK with a WHITE stripe on it. Now be careful that you do not use the WHITE with the PINK stripe, that is the incorrect one.

Also the cig lighter is only on in acc I think.

If you are going to run all that stuff though, I would definately use a relay that is activated by the acc wire and not draw everything directly from it.

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post #3 of 6 Old 06-03-2010, 07:18 AM Thread Starter
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Awesome thanks. Yeah everything is run of power run from the battery theres just a controller that needs a lead from the ACC to know when to turn on and off.
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post #4 of 6 Old 06-03-2010, 07:42 AM
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Quote:
Originally Posted by Hawkeye View Post
Awesome thanks. Yeah everything is run of power run from the battery theres just a controller that needs a lead from the ACC to know when to turn on and off.
Being safe I would still use a relay off of that wire. In my experience Ive used a relay run from the one behind the cig lighter. It is just extra piece of mind.
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post #5 of 6 Old 06-03-2010, 08:00 AM
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Pink with white x2. This wire will also keep 12v's while cranking the starter. Use it to trigger a relay, I would suggest 50amp fed to a fused distribution block, think car stereo and multiple amps. Use 4ga from the battery (100 amp circuit breaker) to the relay, then from the relay to a distribution block. The reason that I say use a fused one is because you can fuse the power out from the distribution block according to the device it is feeding. this way you will never have a issue needing power for any electroncics at a later date.

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post #6 of 6 Old 06-03-2010, 04:40 PM
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Originally Posted by XJK07 View Post
It is just extra piece of mind.
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