Aftermarket radio hookup
April 25th, 2019, 3:59 PM
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Aftermarket radio hookup
Hey Folks! I'm new to the forum and trying to wire up an aftermarket stereo to my 2008 Equinox LS and having some difficulty. I am bypassing all the GM crap and not retaining any of the chimes, on star, etc.
I ran an add on circuit to the fuse panel using the RSE fuse slot and I get radio to work fine for a day, but when I stop using it and go to get in every morning, the radio won't work. I un hooked the power for a while, reinstall and works for a bit. I tried running a separate ground instead of using the blk/wht wire in the factory radio harness, but same thing happens every day. It will work again till the next day. I ran the aftermarket radios yellow constant or memory power to the yellow wire in the factory harness. Could this be my problem? Is this not the constant power or memory power?Need some direction here. Thanks
I ran an add on circuit to the fuse panel using the RSE fuse slot and I get radio to work fine for a day, but when I stop using it and go to get in every morning, the radio won't work. I un hooked the power for a while, reinstall and works for a bit. I tried running a separate ground instead of using the blk/wht wire in the factory radio harness, but same thing happens every day. It will work again till the next day. I ran the aftermarket radios yellow constant or memory power to the yellow wire in the factory harness. Could this be my problem? Is this not the constant power or memory power?Need some direction here. Thanks
Last edited by Diceman5150; April 25th, 2019 at 4:02 PM.
April 25th, 2019, 7:11 PM
#2
Hey Folks! I'm new to the forum and trying to wire up an aftermarket stereo to my 2008 Equinox LS and having some difficulty. I am bypassing all the GM crap and not retaining any of the chimes, on star, etc.
I ran an add on circuit to the fuse panel using the RSE fuse slot and I get radio to work fine for a day, but when I stop using it and go to get in every morning, the radio won't work. I un hooked the power for a while, reinstall and works for a bit. I tried running a separate ground instead of using the blk/wht wire in the factory radio harness, but same thing happens every day. It will work again till the next day. I ran the aftermarket radios yellow constant or memory power to the yellow wire in the factory harness. Could this be my problem? Is this not the constant power or memory power?Need some direction here. Thanks
I ran an add on circuit to the fuse panel using the RSE fuse slot and I get radio to work fine for a day, but when I stop using it and go to get in every morning, the radio won't work. I un hooked the power for a while, reinstall and works for a bit. I tried running a separate ground instead of using the blk/wht wire in the factory radio harness, but same thing happens every day. It will work again till the next day. I ran the aftermarket radios yellow constant or memory power to the yellow wire in the factory harness. Could this be my problem? Is this not the constant power or memory power?Need some direction here. Thanks
April 25th, 2019, 8:10 PM
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No, I'm referring to the yellow wire I cut off the factory harness. According to another wiring diagram I received, that it was a constant power wire. But I also found another web page that said it was for an amp circuit. The problem I'm having is I have a satellite reciever plugged in the the power moonroof circuit and if I switch the radio power to it, it does the same thing. It will work for awhile, then it wont. Very frustrating.
April 25th, 2019, 9:08 PM
#4
No, I'm referring to the yellow wire I cut off the factory harness. According to another wiring diagram I received, that it was a constant power wire. But I also found another web page that said it was for an amp circuit. The problem I'm having is I have a satellite reciever plugged in the the power moonroof circuit and if I switch the radio power to it, it does the same thing. It will work for awhile, then it wont. Very frustrating.
Does your Equinox have the base audio system or the premium system with the subwoofer in the cargo area?
Did you check the 2A IGN fuse?
Yellow is constant power for for the EIA standard wiring color scheme that most aftermarket radios use. In older GM vehicles, yellow was the color of the switched +12V wire (AKA ignition or accessory wire), but your Equinox (as well as most GM vehicles since the early 2000s) doesn't have this wire because the factory radio is commanded to turn off/on by the BCM.
You really should have bought the correct adapter harness instead of just cutting the factory plug off. It would've made things much easier - just match colors and find a switched +12V source to tap into. I suspect the wiring diagram(s) you referenced is inaccurate so I've linked the correct diagrams below.
2007-2009 Equinox base audio
2007-2009 Equinox Premium audio (1 of 2)
2007-2009 Equinox Premium audio (2 of 2)
To properly troubleshoot your issue, we'd need to know exactly how you have everything connected.
Last edited by ruley73; April 25th, 2019 at 9:23 PM.
December 4th, 2021, 10:36 PM
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Patricia keith
Check your 2A IGN fuse in the interior fuse panel. The RSE circuit goes through the RAP relay, which would be disabled if that fuse is bad. Also, you should only have the switched/accessory +12V lead from the radio connected to the RSE circuit. When you say "yellow wire in the factory harness", do you mean you cut the plug off that would go into the factory radio or are you referring to the yellow wire on the adapter harness? The yellow wire on the adapter harness would be the constant +12V, but not the yellow wire in the harness coming from the car. The latter would be the left rear speaker (-).