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Unread 04-09-2010, 10:20 PM   #1
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I have torn apart my dash, and got the new radio in. I have a harness (that I bought for a previous aftermarket deck) and I removed all the electrical tape around the old decks wiring and the harness and I replaced the same colors with the new decks wiring. I wrapped it all with electrical tape. striped wires with striped wires of that color etc.

I have the red with red and yellow with yellow. The black one had a screw tip on it (goes around the screw) so I guess this is the ground, I couldn't get it to ground off anything so I cut the end off, cut some wire and twirled it along the ground wire from the harness, assuming this worked with my old deck.

Long story short.. the ****ing thing won't turn on. The fuse looks fine and the wiring is all in. What would cause this not to turn on, bad ground i'm assuming? I have it all together though. Do I have to mix the red and yellow wires sorta like a 4 way.

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Unread 04-09-2010, 10:46 PM   #2
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I know for some cars the red and yellow need to be swapped. The ignition switch and the constant 12v.
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Unread 04-09-2010, 11:17 PM   #3
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What I would do is pull the H/U out, then start the car. I'd then grab my trusty 12V test light, clamp it to any exposed metal in there, then touch it to the yellow and red wires. If they light up, you've got power coming in and that metal is a good ground. Then, shut the key off and test them. The one that lights up with the key off is the one that's going to power the memory functions in the radio, the one off goes to the main +12V. Next thing I would do is run me a new ground to that piece of metal and hook up the hot wires appropriately, hook up a speaker, pop the key on and see if it made noise. If it did, I'd start playing Still Alive and put the dash back together.
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Unread 04-10-2010, 01:48 AM   #4
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Definitely don't have a test light (i'm a brokeass kid w/o tools haha)

So you're saying I should try swapping the yellow and red so they each touch a different color? yel/red with yel/red?

I didn't disconnect the terminals on my battery so I didn't touch it with my voltmeter, didn't know if it was dangerous or not.

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Unread 04-10-2010, 04:16 AM   #5
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You have a voltmeter? You can use that to test for power too, just set it to 12VDC and ensure you observe polarity. Simply substitute it for the test light(which are like 5-20 bucks anyways lol) and go.
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My rigs:

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1997 Ford Explorer XLT | 4.0L Vulcan V6 | 5-speed automatic | shift-on-the-fly 4WD | 210,000 miles | Running 95% - Needs brakes on all four corners + bald tires
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Unread 04-10-2010, 11:17 AM   #6
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You can get a volt meter at any hardware store for $3 doesn't have to be a fancy Fluke.
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Unread 04-10-2010, 03:10 PM   #7
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Well I went to future shop and the guy told me to run the red wire to the 25a fuse in the fusebox and voila it worked, he gave me some wire as well, so i'm pretty happy about their service. The guy was spot on too.

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Unread 04-10-2010, 06:58 PM   #8
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Duh
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Unread 04-11-2010, 12:20 AM   #9
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Quote:
Originally Posted by wierdo124 View Post
Duh
Thanks, you make me feel retarded. Noone told me I had to do this, it's not even in the manual lmao.

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Unread 04-11-2010, 08:40 AM   #10
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I mean as in i should've thought of that
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