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Old 06-15-2010, 04:44 PM   #1
Razr
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wiring.....for constant

i have a 1969 gmc c2500....and want to install a stereo........where do i connect the red power wire and the yellow wire.........the red one goes to the fusebox but what about the yellow one.......
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Old 06-15-2010, 04:57 PM   #2
JimmyFloyd
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Re: wiring.....for constant

One should be hot all the time, and one should be hot on accessory. Both of these should be available in the fuse box.




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Old 06-15-2010, 05:35 PM   #3
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Re: wiring.....for constant

which one is hot and which is acc......on the fusebox
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Old 08-17-2010, 05:03 AM   #4
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Re: wiring.....for constant

acc. is also ign. and the cig should be constant in this case.
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Old 09-01-2010, 06:25 PM   #5
TheSunDanceKid
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Re: wiring.....for constant

at the ignition harness pink is switched ignition and red is constant power all wires are a thicker wire up under the steering colum usally with about 6 other larger gauge wires always fuse!!!!
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Old 10-28-2010, 08:13 AM   #6
stich626
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Re: wiring.....for constant

red on the head unit is most times power switched, for use'n the radio
the yellow is hot 24/7 for the clock and station memory, some will also have a gray, that ties into your dash lights, to dim the radio with the dash..
good luck
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