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No Power to either head unit

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Old Aug 2, 2009 | 05:35 PM
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Default No Power to either head unit

Hello All,

I seem to have a wiring problem, I was wonding if anyone could tell me what might be the problem. I am installing my pioneer P6800 as we speak and for some reason my cd player will not get power .... I also tried putting the old cd player back in (stock non- bose ) still nothing I have done this many times but my first on a Z i have fallowed the sticky time and time again dubble checked my wiring and still can not get power to it is it posible i am missing something its an 04 z ... cd player dose work and powers on with direct connections please let me know if anyone has any ideas of what could be causing this ......

sorry for 2nd posting computer is flipping out on me out side of the house

Luis

Last edited by MASTERLUIE214; Aug 2, 2009 at 05:37 PM.
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Old Aug 2, 2009 | 07:21 PM
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If you are working with a accessories ON - hot wire, then it should be hot. Did you blow the fuse?
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Old Aug 2, 2009 | 07:22 PM
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Make sure you have a good ground
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Old Aug 2, 2009 | 07:38 PM
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Yes I did but has been replaced twice, So once I knowticed that something was going on with the cd player posible cross wiring or something I rewired the hold thing and replaced the fuse ... at that point i got tired of it for the day and was going to put the stock unit back in but it wont come back on on, but it will allow me to spit out the cd that i forgot was in there so i know some kind of power is going to it ....
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Old Aug 2, 2009 | 07:44 PM
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Originally Posted by jduet
Make sure you have a good ground
I tried alot of diffrent places for ground that I know for a fact was part of the frame ... still no good is there some kind of secruity I even checks all other fuses to see if it was causing the problem and nothing I am compleatly lost .
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Old Aug 2, 2009 | 10:46 PM
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Check the power mirror fuse...yes the mirror fuse lol. Nissan lists it as fuse #6. It sounds like the constant battery power circuit is good but not the accessory power circuit. I say this because if I remember correctly, you can remove a cd with key off on the stock unit, indicating the constant power source is probably working. The mirror fuse is part of the same circuit as the accessory (on) power source to the radio.
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Old Aug 3, 2009 | 10:30 AM
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YAY!!!! you where right about the mirror fuse I replaced it and got power back it was also causing a other radio fuse under the hood to burn out .... so I burnt out both and I was looking at one and not the other thanks alot that was a big help got everything installed no problem....
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Old Aug 3, 2009 | 07:05 PM
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Glad to hear
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Old May 29, 2020 | 06:16 PM
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Originally Posted by 350z 6spd
Check the power mirror fuse...yes the mirror fuse lol. Nissan lists it as fuse #6. It sounds like the constant battery power circuit is good but not the accessory power circuit. I say this because if I remember correctly, you can remove a cd with key off on the stock unit, indicating the constant power source is probably working. The mirror fuse is part of the same circuit as the accessory (on) power source to the radio.
I am having this same issue with my 08 went to put a new unit in and it won't power on. Neither will the old unit. I checked the mirror fuse. Not sure what else to do.
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Old May 30, 2020 | 07:21 AM
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Originally Posted by Mason Ciarrochi
I am having this same issue with my 08 went to put a new unit in and it won't power on. Neither will the old unit. I checked the mirror fuse. Not sure what else to do.
this thread hasnt been active in 11 years
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Old Jun 1, 2020 | 10:07 AM
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Originally Posted by Mason Ciarrochi
I am having this same issue with my 08 went to put a new unit in and it won't power on. Neither will the old unit. I checked the mirror fuse. Not sure what else to do.
Did you remove the radio recently?
Did you any work recently? Make sure everything went back properly, specially connectors.
Also, check the fuses and if anything else stopped working...

Br,
Al
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Old Dec 24, 2022 | 04:25 PM
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Originally Posted by 350z 6spd
Check the power mirror fuse...yes the mirror fuse lol. Nissan lists it as fuse #6. It sounds like the constant battery power circuit is good but not the accessory power circuit. I say this because if I remember correctly, you can remove a cd with key off on the stock unit, indicating the constant power source is probably working. The mirror fuse is part of the same circuit as the accessory (on) power source to the radio.
Dude, you are a legend. A Mother 'Effing legend. I was replacing my 2006 Roadster Bose (I'm the original owner) with a JVC and I had 4 calls to Crutchfield and a full day of pissing off my wife because it's Christmas Eve and you had the answer. I now have voltage on my red wire. God Bless Ye, if you even still monitor this account.
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Old Dec 24, 2022 | 05:07 PM
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Originally Posted by knumbknuts
Dude, you are a legend. A Mother 'Effing legend. I was replacing my 2006 Roadster Bose (I'm the original owner) with a JVC and I had 4 calls to Crutchfield and a full day of pissing off my wife because it's Christmas Eve and you had the answer. I now have voltage on my red wire. God Bless Ye, if you even still monitor this account.
He hasn't logged in for 5.5 years.... but I am sue he heard "you're my boy blue"
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