any car stereo guru's?

[Phantez]

I have a stereo in my car that wont keep its setting or place on the cd after the car is shut off. My brother thought it had to do with having a bad ground, but ive tried several places with no results. I also have a gauge thats wired in with the stereo that doesnt stay lit (When i turn on the headlights, the back light will flick on for a split second, then shut off), and im guessing it has something to do with same problem thats causing the stereo to not keep its place. Anyone know what to do?

[Drifte]

Your headunit has 2 power supplies. One is the constant and fused 12v, the other is the memory...if I remember correctly. Now its been a while, But I know you just need a different source. Lemme think out loud here, its red 12v fused power, yellow wire illumination, black/green ground...

its been awhile, check your wiring diagram, make sure you run your power to a good constant source. I cant think...im quiting, sry. goodluck

[Luminatorz34]

colt, yellow is battery constant, and the red is the switched positive (keyed power)

[Stg4raddo]

red= switched 12v+
yellow= constant 12v+
black= Ground
Orange= illuminations
Blue and/or blue with white stripe= amp turn on/ power antenna

what kinda car is this in? ill try and remember to check back and i can give you the wire colors for the car side of the radio as well.

you are probably missing your 12+ constant wire since its not holding memory. the radio just turns on/ off with the key and resets each time

[Phantez]

its an 89 nissan 240sx

[Drifte]

theirs your problem right their...

jk, rough summer for me, sorry I couldnt be more help.

[xci.ed6]

240sx adapter harnesses have a ground wire, idk why though, because the stock radio grounds through it's chassis. While they have probably hit the nail on the head, problem 2 is that it is most likely grounding through the antenna. You need to make a new ground.

I work for $30/hr. PM me for contact info if you want it done this weekend.

[Stg4raddo]

i give the info away free pretty much any one can install a radio. dustin is correct the ground is a chassis ground so take the ground wire from the radio put a ring terminal on the end or strip back enough wire to wrap it around a nice bolt. clean any paint off from around the bolt first for a good ground. then the rest of the wires on the car should be as follows if your not using a wiring harness that plugs into the cars harness

Constant 12V+ Red/Black
Switched 12V+ Blue
Ground Chassis
Illumination Red/Blue
Dimmer Red/Yellow
Antenna Trigger Black/Red
Antenna Left Rear
Front Speakers 4" x 6" Doors
Left Front (+) Blue/White
Left Front (-) Blue/Yellow
Right Front (+) Brown
Right Front (-) Brown/White
Rear Speakers 6 1/2" Rear Deck
Left Rear (+) Red
Left Rear (-) Green
Right Rear (+) Blue
Right Rear (-) Pink

[Drifte]

pretty much anyone, and yet...here we are.