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I just installed a new stereo system. The 12V constant is not working. I changed to use the power from the cigar lighter. But this make my clock reset everytime I turn on the car.
Anybody has suggestion to fix this. Any diagram or method to check where the 12V is not working?
Thanks alot

 
Rep Power: 329

It would be nice to know what car I am dealing with.

Honda civic, what? I need to know the year and trim level coupe or sedan.

 
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But without the specifics, I can give you this.

http://www.the12volt.com/installbay/...ard/Honda.html

 
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Thanks for reply
My car is a Civic 95 DX 1.5 4dr.
Can you plz help me with this.

 
Rep Power: 291

well, since the cigarette lighter turns off every time the car turns off, that wouldn't be a good choice. if you got a harness with the stereo, then it should have matched up no problem. i think it's either the yellow or red wire. if you didn't get a harness and cut into your factory wires, then you'll need to get a wiring diagram and find which wire is the constant power from your car. go buy a Haynes manual for your car if you don't already have one. they have wire diagrams in the back.

 
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Thanks for replying. I plugged the power to the 12v constant correctly, because the clock start running when I connect the wire. And the clock is supplied by the 12v constant.
So there must be a problem in wire from 12V to clock. I dont know any fuse or anywhere around to control this 12V constant.
Thanks

 
Rep Power: 263

Why don't you use a circuit tester to make sure the clock is hooked up to the hot wire?
If you don't have one make your own with a small bulb and two wires.

 
Rep Power: 291

there's the memory power and the main power. even if the memory power is not connected, the clock will start when the radio is powered. if there was a problem in the wire to the clock, then i'd say the clock wouldn't work at all. either way, you need to get a meter or something to do some testing with.

 
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What about the station memory presets are they reseting also?
If so your def not wired to the constant hot.
correct me if I'm wrong.

 
Rep Power: 329

1995 Honda Civic Stereo Information
Constant 12V+Blue/White (Blue with a White stripe)
Switched 12V+ Yellow/Red (Yellow with a Red stripe)
Ground Black
Illumination Red/Black
Dimmer n/a
Antenna Driver's Pillar
Front Speakers 6 1/2" Doors
Left Front (+) Blue/Green
Left Front (-) Gray/Black
Right Front (+) Red/Green
Right Front (-) Brown/Black
Rear Speakers 5 1/4" Rear Deck
Left Rear (+) Blue/Yellow
Left Rear (-) Gray/White
Right Rear (+) Red/Yellow
Right Rear (-) Brown/White

 
Rep Power: 263

Constant deck power is ran off a 7.5A fuse under the hood. The fuse is labeled either Back-Up or Fuse# 32. Fusebox appears to be passenger side, rear of the engine bay. This fuse also supplies power to the clock and your Engine Control Module.