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Old 03-13-2010, 03:25 PM   #1
madkat
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wiring a cigarette lighter.

I need to add a cigarette lighter behind my dash for my new HD radio (it's standalone, and I don't want another plug on my dash (plus I'm doing a professional install. I HATE wires snaking around, I tore my center out to hide my aux cable for my iPod.


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Old 03-14-2010, 04:55 AM   #2
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Are you wiring this radio so you can take out when you park the car ? If not why not just cut off the plug end of the radio and wire it straight in?.
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Old 03-14-2010, 06:25 AM   #3
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Ok, the easiest thing to do is going to be to find the wiring to the cig lighter in the dash. Then get you some Scotch inline connectors which allow you to tap into a wire with another wire without stripping. You basically put it over the top of the wire to be tapped, then insert the wire you want to tap with in the other side, and close the connector. If I had more time I'd find you a pic of what these look like. You can purchase them at hardware stores or automotive parts stores. It's more expensive than other methods- but easier, and if done correctly- very effective. Knowing your wire size is very important. Most things in car dashes are 16 ga or less.

OF course, don't forget to remove the negative terminal from the battery before doing any electrical work that involves splicing in a vehicle.
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Old 03-15-2010, 12:28 PM   #4
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To magnify the first comment, if you don't plan on removing the unit hard wiring it will avoid the PITA of the plug in regularly coming loose/wearing out over time.
And if you remove it occasionally without using it in another vehicle I'd recommend using a two wire flat plug connector (avail. at auto parts or radio shack) that is "polarized" (you can't plug it in backwards) as this won't come loose or get hot due to poor connection as cigarette plug styles do.
If you do this, make sure the "hot" side on the vehicle end is the "shielded" one, so when not plugged it it can't short to ground by accident.
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Old 03-16-2010, 07:00 PM   #5
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Thats what I have.

I want to put the plug behind the radio so I don't see it. I also want it to turn off when I turn the car off (It stays on unless I turn it off).

Can I just splice in with the 12v switched and ground from the radio and be ok?
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Old 03-18-2010, 01:24 PM   #6
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That should be a low-draw, so wiring & fuse should be OK for that added load - so go ahead!
(any key-on power source should work..)
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Old 03-18-2010, 11:17 PM   #7
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Check the fuse panel below the steering column-there is a pull off panel covering it up. My '08 had several fused unused circuits in the panel (check your owner's manual). I put a Ford Escape lighter plug (w/cover) in my trunk for a 12V cooler. I used an unused 20A circuit in the fuse panel and a mini fuse tap on the "out" side of the fuse. Couldn't have been easier!
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