1992 240sx stereo wiring decodeing please.

[Zydeco]

I just got a new head unit. I need to change the from the stock wireing harnes to the one that came with the new unit. I cant figure out how to decode the car wireing harness? It looks like I need to hook up nine wires. Blue w/white stripe Blue w/yellow stripe brown w/black stripe brown w/white stripe black w/red stripe red w/yellow stripe red w/blue stripe blue w/no stripe brown w/no stripe. can any one tell me where each wire is sopoded to go, please. My car is a 1992 240sx coupes w/a 5 speed.heres how my new wireing harnes goes.Powere wiresl:

Red to power.yellow to battery direct.black to groundblue to power antenna

Speakers:

front left- white +white w/black -

Front Right Gray +Gray w/black -

Rear Left Green +Green w/black -

Rear Right Violet +Violet w/black -Thanx in adavance. Dustin

[onosqv]

From http://www.the12volt.com.

http://www.the12volt.com/insta...tereo

1991-92 Nissan 240 SX Stereo InformationConstant 12V+ Red/Black Switched 12V+ Blue Ground Chassis Illumination Red/Blue Dimmer Red/Yellow Antenna Left Rear Front Speakers 4" x 6" DoorsLeft Front (+) Blue/White Left Front (-) Blue/Yellow Right Front (+) Brown Right Front (-) Brown/White Rear Speakers 6 1/2" Rear DeckLeft Rear (+) Red Left Rear (-) Green Right Rear (+) Blue Right Rear (-) Pink

[Zydeco]

you the man, thanx so much.

[hobiecat]

Will these wire colors apply to a 1993 240sx se convertable (no rear deck, rear speakers in side panel)? Getting ready to start my head unit and speaker changeout after Christmas. Was sold 4x6 speakers all around, hope that's right...

[Zydeco]

Im sure they didnt change it form 92 to 93.

[Zydeco]

Ok, Im haveing some problems here, what do theas go to?Illumination Red/Blue Dimmer Red/Yellow Im not getting any power to my headunit.

[onosqv]

Hmmm, did you purchase the nissan harness adapter? This plugs into the 2 plugs from the car's chassis and is marked w/ all the labels (i.e. power, stereo left +, illumination, etc), then you use that to connect to the stereo head unit.

In any case, the easiest way to do this is to use a multimeter (or a test light, but use that at your own risk ). Just probe to make sure the power on and constant 12v is powered correctly. Then you should be able to get your head unit to come on at the least. Also, check the fuse on the unit if that doesn't work.

The illumination has to do w/ either when you turn the headlights on or just the backlight of the display.

The dimmer will get brighter/darker along w/ the rest of the lights on the cluster and climate control in your car by your car's dimmer switch.

Those can definitely be hooked up, I've done that on my car.

Do you have the manual for your headunit? or can you d/l a manual? That usually contains a diagram for the stereo side w/ the colors. Then you match up w/ the chassis side and you'll be set.

and GET A MULTIMETER!!!! - you'll need that for many things, so it pays for itself rather quickly.

Also, I just noticed you posted this in technical, I know you'll get some real expert advice if this is linked to or posted in the Audio section.

Hope that helps a lil.

[Zydeco]

thanx, ill try that and get back to you.

[98s14inaz]

Could be the factory amps, get rid of those and rewire. My 95 s14 wasn't getting power to my speakers. Did the rewire, got rid of the factory amps, problem solved.

[Zydeco]

Im stilling haveing issues. I dont see a black wire, I see a black one with a red stripe. Is this my ground? Now heres where are realy starting to confuse me. When I take the face off the headunit, theres a red blinking light on it. it lit and blinking when the key is out of the ingison but the head unit wont come on. Do you think my H/U is messed up? or am I still wireing this thing wrong?
Modified by -]sTm[-HeavyHips at 9:39 PM 12/19/2004

[onosqv]

Ground -> chassis. It doesn't connect to wire.

I put it on the metal unpainted bracket w/ a screw to the chassis.

If you are not grounding it properly, then you will have issues w/ power on. Maybe that's your problem.

[98s14inaz]

I concur

[Zydeco]

OMG, thanx a million. I just heard my sound system for the first time in about 4 months. Thank you and also thank NICO.Man Im goin for a good drive cya guy later.