Head Unit Install REM?

[JoseMCeee 10+ year member]

I did my first head unit install on a 91 blazer and it came out pretty clean but I cant figure out the REM install part. The wires that are left from the stock install is a grey wire that says LAMP and then 2 other wires (One orange, One Brown). I think the other 2 wires might be a power and ground because the cig ligher and a little lamp has the same color wires. Well would one of these work or should I just run a different wire to some other place and what place would that be? Also when the REM isnt connected the memory gets erased every time the car is turned off right?

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[squeak9798 5,000+ posts]

The wires that are left from the stock install is a grey wire that says LAMP and then 2 other wires (One orange, One Brown). I think the other 2 wires might be a power and ground because the cig ligher and a little lamp has the same color wires.

Are those the factory colors, or the colors on the aftermarket HU itself?

Also when the REM isnt connected the memory gets erased every time the car is turned off right?

No, that's the constant 12V connection (yellow wire). The REM wire is the wire that you would connect to an amp to tell it when to turn on. It has nothing to do with the install of the HU, only when connecting an external amplifier.

 

[JoseMCeee 10+ year member]

Are those the factory colors, or the colors on the aftermarket HU itself?




No, that's the constant 12V connection (yellow wire). The REM wire is the wire that you would connect to an amp to tell it when to turn on. It has nothing to do with the install of the HU, only when connecting an external amplifier.

so the REM shouldnt be connected to anything when theres no amps?

And yea those are the stock wiring colors. The reason I asked about the memory is because the memory does get erased every time //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif haha

 

[JAZN 5,000+ posts]

the REM wire is blue and white.

no amps = it shouldnt be connected to anything.

 

[tRiGgEr 5,000+ posts]

the REM wire is blue and white.no amps = it shouldnt be connected to anything.

X2 //content.invisioncic.com/y282845/emoticons/2thumbs.gif.fdc3ba010dbb42b61704534b46d02fe4.gif

 

[JoseMCeee 10+ year member]

the REM wire is blue and white.no amps = it shouldnt be connected to anything.

ok got it. So wat about the memory problem? It resets every time the car stays off for more than 10 secs. I know right now the yellow 12V and the red Accessory wire from the aftermarket deck are wired to the yellow 12V from the vehicle.

 

[tRiGgEr 5,000+ posts]

You don't have a DMM???

You need to hook up the yellow wire to a constant 12v source wire. Use a test light to find one if you dont have a DMM.

 

[Decipha 10+ year member]

x2, disconnect them from each other and connect the yellow wire to a constant

power source, if you can't find one check your fuses you probably blew it, if that

still doesn't work then run yourself a fused wire from the battery to the yellow

wire.

BTW: what kind of car is this? year/make/model

instead of cutting the factory harness why didn't you go to walmart and get the adapter?

it makes things alot easier and only costs a couple bucks

 

[JoseMCeee 10+ year member]

I already cut them. The owner wanted the stereo installed that very day so I just cut off the stock harness. But I labeled everything. So I can just hook a wire directly to the batt? Just put a fuse on it? Also if I use the DMM I just just check to see if theres a wire thats 12V at all times with the car off right? Where would I hook the black wire of the dmm to?

 

[tRiGgEr 5,000+ posts]

A ground //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

You sure everything turned out ok. You didn't conect the power to the brake light or nothing right //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[JoseMCeee 10+ year member]

A ground //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif
You sure everything turned out ok. You didn't conect the power to the brake light or nothing right //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

na everything is good. Sounds good just the memory thing thats messed up. So if I connect the the head unit 12V yellow wire to a constant 12V wire to the car the deck would work AND retain its memory? What about the RED Accessory wire coming from the deck?

 

[squeak9798 5,000+ posts]

na everything is good. Sounds good just the memory thing thats messed up. So if I connect the the head unit 12V yellow wire to a constant 12V wire to the car the deck would work AND retain its memory?

Yup. That's what the yellow wire is there for.

What about the RED Accessory wire coming from the deck?

That should be connected to an ignition controlled power source; i.e. a wire that only has power when the car's key is either in the ACC (accessory) position or the ON (i.e. car running) position.

 

[tRiGgEr 5,000+ posts]

Yup. That's what the yellow wire is there for.


That should be connected to an ignition controlled power source; i.e. a wire that only has power when the car's key is either in the ACC (accessory) position or the ON (i.e. car running) position.

X2 //content.invisioncic.com/y282845/emoticons/2thumbs.gif.fdc3ba010dbb42b61704534b46d02fe4.gif

 

[JoseMCeee 10+ year member]

Yup. That's what the yellow wire is there for.


That should be connected to an ignition controlled power source; i.e. a wire that only has power when the car's key is either in the ACC (accessory) position or the ON (i.e. car running) position.

well to begin with I connected the yellow 12V from the deck to the yellow 12V of the car (Well the car labeling said it was 12V) and it would only turn on for a second then turn off. Like you could push a button to display the time and it would turn on only to insert and eject a cd. But it wouldnt stay on. Then I connected the deck's yellow 12V AND red Accessory and it worked but the memory would get erased.

 

[tRiGgEr 5,000+ posts]

Just do as we recommended and you will be done...