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Old 06-12-2012, 01:29 PM   #1
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Default Need Some Help Troubleshooting Electrical Issues

Hey everyone. I have an 04 Bonneville GXP. I was installing an aftermarket amp and trying to run the remote lead to the fuse box. I read that the cigar lighter is the only fuse/relay that doesn't have constant power. I ran my remote to that relay, went to turn my car on and my aftermarket radio (the power, ground and acc for which were hotwired by a professional from the cigar lighter in the front of the car) went into protect mode. I've tried disconnecting all of the wires from the back of my head unit except for power, ground and acc to no change-- still in protect mode.

I've also noticed that my compressor in the trunk has been turning on more often than it used to.

Did I fubar my RIM? How can I tell?

Also, does anyone have the wiring diagram for the Monsoon system in these cars?

Thanks a ton in advance.
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Old 06-12-2012, 03:17 PM   #2
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so your hu is in protect mode, and they put it on your cigar fuse? did you check to see if the fuse is good and seated properly. how did you tap for the remote wire? the aftermarket radios have amp turn on wires you should have come off that. not sure what a rim is. i like to go off the rap(retained acc power) for the radio keyed source then you retain the function of the vehicle. the cigar lighter circuit may not be big enough to handle the radio let alone other stuff you may have plugged in.
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Old 06-12-2012, 03:46 PM   #3
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RIM is the rear integration module.

I had the unit professionally installed. The installer decided to get power from the cigar lighter outlet near the radio because the wiring harness wouldn't give power to the radio.

I attempted to run a remote wire to the cigar relay in the fuse box underneath the rear seat because I didn't want to pull the dash apart to run the wire from the back of the stereo.

The cigar lighter has a relay, not a fuse. And it is currently seated properly.

I fear that I might have sent power through that relay and back to the rear integration module--effectively blowing the RIM.
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Old 06-12-2012, 04:28 PM   #4
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diagram says fuse is number 23 under hood, and there is more than one circuit for multiple cigar lighters. the rear one is number 65

not sure why you have anything to do with the rim. is everything else working? why do you think its bad?
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Old 06-12-2012, 04:33 PM   #5
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you can come off the fuse in the rear label rdo/ph for the amp turn on if its more convenient. its on rap and will be active when your rap is. all of your cig lighter fuses are labeled always hot.
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Old 06-12-2012, 04:49 PM   #6
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as far as the protect mode that is normally because you have two of the speaker wires touching or shorted, and if you find it you will likely have to remove power for a while to reset the unit. did you look in the units manual?
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Old 06-12-2012, 05:22 PM   #7
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Yikes....

The radio pulls more power than what your tiny lighter wiring is meant to handle, that'* not a good place to pull power from. Not only that but if you pull power from the lighter then you are going to lose power to the radio every time you turn the car off and it'* going to forget all of your settings. The radio needs constant power.

I ran a fused power feed from the battery to the dash to power my radio so I wasn't overloading the factory wiring, and I hope they at least grounded your radio to the frame instead of the factory ground.

There is a remote signal in your factory wire harness. If memory serves, when I did mine it did not pass through the gmos module and I had to tap into it on my own. I didn't have a wiring diagram so I just grounded my multimeter and tested each wire in the factory harness until I found one that had 12V with Key on ACC and stayed on when Key was turned off until the door gets opened.
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Old 06-12-2012, 05:51 PM   #8
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Thanks for the responses everyone.

I did try disconnecting the speaker wire and capping it right after the head unit. Nothing.

I'm not convinced that it'* the cigarette lighter that it'* wired into, but there is a loomed connection that is near the floor behind the dash from which the wires run. The cigarette lighter there still works...

I'm guessing there'* something wrong because my factory radio wiring harness won't power my aftermarket unit when I hook it up through the supplied harnesses. Additionally, my rear air compressor has started to turn on more often than it used to. It used to turn on for about 3 second when I would start up the car and then not run the entire time I was driving. Now it will sometimes run for a longer period while I drive.

I could run a new fused constant power from the battery, I just wouldn't know from where to get the accessory. I could try testing all of the pins on the factory harness.

Does the wiring harness get power from the Monsoon amp? The wiring back there was hacked up by a previous owner and there are only two or three wires connected to the amp (red, black and maybe yellow)... The rest were all hacked up and spliced together.

I don't need any of the factory speaker wiring--I'm running aftermarket amps off of RCAs to power the speakers. So if I knew where to get an accessory from (i.e. from the stereo wiring harness), I could just run a fused constant power and use the new ground that I ran and be good to go!
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Old 06-13-2012, 07:28 AM   #9
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the front cig lighter circuit is 25 amp which is plenty for your radio. you have to reset the unit, look in the manual for how but you probably have to unplug it for 15minutes or more, the safety senses a short then locks up to protect itself so until you reset it you arent going to know if you fixed it.

for your amp see post 5, you want your amp on when the radio is so you want it the rap. you can get something called a mini fuse tap and come off the fuse in the rear.
http://shop.advanceautoparts.com/web...|GRP2020A_____

as far as the rest of it everything in your car is protected with relays and fuses its very unlikely that you caused any other issues.
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Old 06-13-2012, 10:04 AM   #10
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Very interesting, thank you. I was going to run to advance autoparts tonight to pick up a few things anyway--those will certainly be on my list now.

I am going to hook my stock radio up to the harness tonight just to see if it will still power up. I am also going to try reconnecting my aftermarket unit since I've had it out of the vehicle for about 3 days now--plenty of time for it to reset.

I'm hoping to get everything solved tonight.

Thanks again.
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