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09-25-2006, 07:41 PM
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Hummer Veteran
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Join Date: Sep 2005
Posts: 127
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Ignition power wire issue
Has anyone else experienced a problem where the ignition controled +12 power wire (red) doesn't power up properly? I've had this happen on two different head units now. After installing an after market head unit, I'm finding that when I turn on the ignition the red power wire may or may not work. I've had two different OEM stereo's in it and never had this problem with them.
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09-25-2006, 08:14 PM
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Hummer Veteran
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Join Date: Sep 2005
Posts: 127
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Re: Ignition power wire issue
Ok, although I haven?t had the opportunity to check it, I?ve been looking at the PAC Audio schematics and willing to bet that the OS-2 has something to do with this.
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09-25-2006, 11:18 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
Posts: 4,744
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Re: Ignition power wire issue
May I ask what you are talking about? What red wire, what head units?
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09-26-2006, 06:17 PM
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Hummer Veteran
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Join Date: Sep 2005
Posts: 127
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Re: Ignition power wire issue
I'm talking about the ACC wire that goes hot when the ignition is switched on. The same hot wire that stays hot for x number of minutes after the ignition is switched off until you open the door. The head units would be any after market head unit, in my case I've had Pioneer, JVC and Jensen.
I think I found my problem. When I spliced two of the purple wires together on the vehicle harness, I think I used a splice connector that was too big for the wires and was not getting a proper connection. Only time will tell but I've got a good feeling about it. Thanks.
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09-26-2006, 09:39 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
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Re: Ignition power wire issue
I guess what confused me is the ACC wire and the thought of one going to the factory head unit. There is no red ACC wire. The radio is not on the RAP circuit. The BCM directly controls the On/Off of the radio, and the power to the radio is supplied by an Orange B+ wire.
Not sure what the class 2 wires would do, since the aftermarket radio does not require the class 2 signals. Usually, the splicing of the class 2 is to allow the serial data to flow from the Onstar and XM modules.
But, if you fixed it...cool.
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09-26-2006, 10:37 PM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
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Re: Ignition power wire issue
Quote:
Originally Posted by Crisco
I'm talking about the ACC wire that goes hot when the ignition is switched on. The same hot wire that stays hot for x number of minutes after the ignition is switched off until you open the door. The head units would be any after market head unit, in my case I've had Pioneer, JVC and Jensen.
When connecting why not pig tail and solder or use wire nuts. They are usually better unless in a marine environment...
I think I found my problem. When I spliced two of the purple wires together on the vehicle harness, I think I used a splice connector that was too big for the wires and was not getting a proper connection. Only time will tell but I've got a good feeling about it. Thanks.
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When complete a little electrical tape and sometimes a tie wrap to hold it all up and your good to go.
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