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Cd player wont turn on


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12 replies to this topic

#1 blacky05

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Posted 03 July 2007 - 06:38 PM

I tried installing a head unit the other day and I had to change the old plug for the one that came with the head unit because they were different sizes. So I cut the old wires and connected the new ones. The old power wire was red and the new one is yellow. There is a spare one coming out of the plug that is red but it says ACC. I also connected the earth wire up to the one coming out of the dash instead of just earthing it to a part of the chassis. It was all pretty basic and I connected the battery back up but the head unit doesn't work. Anyone got any ideas?

#2 nissanman

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Posted 03 July 2007 - 06:43 PM

On many S12s the ACC turn on dont work, mind you on alot of older cars these wires are stuffed. Mine wer, so i ran constant power thru it, jst twine the CD PLAYER ACC and BAT power cables to gether and run the thru the car BAT power wire.
I also did my own negitive jst in case tho.

Hope that helps if not, im sure someone has had similar issues

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#3 blacky05

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Posted 03 July 2007 - 06:59 PM

On many S12s the ACC turn on dont work, mind you on alot of older cars these wires are stuffed. Mine wer, so i ran constant power thru it, jst twine the CD PLAYER ACC and BAT power cables to gether and run the thru the car BAT power wire.
I also did my own negitive jst in case tho.

Hope that helps if not, im sure someone has had similar issues

What does the ACC wire do? I didn't connect it at all. Do you just connect them to the power wire together? And if the wires are stuffed, how do you put new ones in? Surely you can't just take a wire directly from the battery to the head unit? I know you can for an amp, but would you need a converter or fuse to stop too much power going to the head unit?

#4 driftking

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Posted 03 July 2007 - 07:19 PM

yellow is normally constant power (battery) red is normally accesories power for wen you turn on the key just hook red and yellow up together or tap in to the fuse box and run a wire from the accesories part of the fuse box i allways run my own earth to the body then hook speakers up and away you go

#5 nissanman

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Posted 03 July 2007 - 07:21 PM

ACC stands for Accesories/ignition.
If you test each power wire, there will be a voltage in the BATT/constant power wire for memory storage etc and voltage thru the ACC wire.
If either one isnt hooked up, it wont work

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#6 blacky05

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Posted 03 July 2007 - 07:51 PM

ACC stands for Accesories/ignition.
If you test each power wire, there will be a voltage in the BATT/constant power wire for memory storage etc and voltage thru the ACC wire.
If either one isnt hooked up, it wont work

Well, that might explain why my head unit doesn't work LOL! Thanks for the help guys, I will give it a go tomorrow.

#7 SheppS12

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Posted 04 July 2007 - 11:00 AM

ACC needs to be hooked into the Ignition, to the ACC wire... so ACC to ACC, if you cant figure out wich is the ACC on the ignition, like myself, you can wire it with the yellow wire directly to the battery, if you do this, add a 10amp fuse, and a switch, so you can turn the CD player on and off, and it doesnt drain your battery.... add the switch to the red, ACC wire...
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If you can figure out wich is the ACC wire on the Ignition, then remove the blue section of wireing, If you cant, Add the blue section of wireing, and dont send any wireing to the ignition
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#8 blacky05

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Posted 04 July 2007 - 03:49 PM

I tried connecting the ACC to the pink wires but to no avail, so I just connected the ACC and Battery wires together and it worked. Should I be using a fuse? And will it drain the battery if I turn the head unit off? Below is an illustration of what I have done. And also what I might do if I need to.
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#9 SheppS12

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Posted 05 July 2007 - 06:40 PM

The Fuse is a saftey feature, the switch is to. With my Cd player, i cant actually turn it off all the way, i can turn it off, but will have the clock displayed at all times, wich, if your not driving on a regular occurance WILL drain your battery, its like leaving the door open and having the intirior light on... I put the switch in to stop the cd player drawing power.
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#10 blacky05

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Posted 05 July 2007 - 07:23 PM

The Fuse is a saftey feature, the switch is to. With my Cd player, i cant actually turn it off all the way, i can turn it off, but will have the clock displayed at all times, wich, if your not driving on a regular occurance WILL drain your battery, its like leaving the door open and having the intirior light on... I put the switch in to stop the cd player drawing power.

Mine only works with a CD in it. I think that it is completely off when there is no CD. It's pretty weird. And I don't think that it is draining the battery either. Plus I am lazy and I probably wont bother putting the fuse and switch in because it works without it. :D

#11 weapon12

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Posted 21 November 2007 - 04:51 PM

go buy a cheap multimeter or test light. ($10 from jaycar or dick smith) Handy as. :(

#12 gerryb

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Posted 22 November 2007 - 01:06 PM

Sorry I was to tired to read everybodies posts so if I'm repeating what other people have said I apologize.

ACC = Accessories = "the turn on power for your player"

Yellow = constant 12 volt + to hold your preset stations, last song on CD etc etc in memory.

For your players Acc wire if you can't find the corresponding s12 wire, just run a wire to the back of your fuse box to any accessory that turns on with accessory power, (the diagram on the fuse box cover will show you - e.g. "radio"), and splice to the "outgoing" side. Alternatively take your steering column cover off and look at the back of your ignition swicth, it has small letters on it "IG" = igntion on "ACC" = accessory on. This will show you the wire at the switch that corresponds to that position, I think its blue from memory.

(Sorry haven't got time to look up radio power wire colour in the manual)

You can hook the yellow wire up to any 12 volt constant (Ignition off source), so you don't lose memory.

If you need to use one of those $5 test lights to test what is Acc power and constant 12V wire, as you turn the key.

Edited by gerryb, 22 November 2007 - 01:07 PM.

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#13 Ozchuck

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Posted 22 November 2007 - 04:26 PM

Maybe its broken>?
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