Help ! With Head Unit Install Query

[600ZILLA]

Hi,

I have taken the standard headunit out of my gtr to find a mess of wires behind (from a previous stereo). My problem is that when i test each of the wires for a battery wire I don't find anything with the digi meter.

Going by standard Nissan Wiring it should be black w/ red stripes but these provide nothing (I found 2 ??).

I checked all the fuses under the steering column individually and they are all fine.

Any ideas at all?

TIA Jon

[SirSkyline]

Was the old unit working before you pulled it out ??

[Chris Rogers]

blk/red is the antenna trigger. are the factory plugs still on it?

you should have 4 twisted pairs of wires. these are front and rear. the gtr has that annoying amp in the rear shelf that should have been bypassed already.

red/blu is lights , should be a blue/? one that is +12v key and the other one should be a red..

( haven't worked on a skyline for a few weeks so I can't remember the colours.)

if the plugs are still on it buy an adapting plug and use that. makes life easier.

[600ZILLA]

Thanks for the quick replies.

The factory unit was working when I removed it

The original plugs are all gone.

I will try and investigate further now.

After testing every wire I cannot find a +12v battery, what other things could I try?

[Damo Monster]

worst case senario you could always just run a new wire from your battery..

.. have you been able to measure 12v on the ignition and lighting leads? might sound silly, but are you sure you have a good ground for your multimeter?..

cheers,

damo

[NashaDaWog]

You sure your using your multimeter correctly? You'd wanna have it on the 20v setting, then be testing each wire with your red probe, whilst always having your black probe grounded (could use your earth wire for the HU if u know which one it is, or the cigarette lighter, or even the headunit chassis is usually earthed also).

Best of luck,

Nasha

[600ZILLA]

Thanks also for your replies guys.

I have covered all off the above.

I get 12v on Ignition and it looks like I am going to have to get the battery power direct. Which isn't the easiest task in the GTR.

[NashaDaWog]

No worries mate. Cant imagine why there isnt a 12v lead, doesnt make sense. If all else fails, whip out the power drill and put a nice, big, convenient hole in your firewall for it

[Chris Rogers]

there is 12V memory there. you have a blown fuse. do a physical check ( remove and inspect.) every fuse. you shouldn't have an interior light currently. the fuse you are after should be outside.