07 galant ralliart roc fosgate

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=118479
Printed Date: May 09, 2025 at 9:58 PM

Topic: 07 galant ralliart roc fosgate

Posted By: wizardaudio
Subject: 07 galant ralliart roc fosgate
Date Posted: December 13, 2009 at 11:07 AM

I need to know if anyone has the wire diagram from the radio to the amp. This guy wants to run a mono block amp and a 4ch amp off the stock Fosgate radio. I have found the amp. Changed out all the Speakers. Got all the wires hooked up to the speakers from the out put of the amp. Now I need the input wire colors into the amp for the LOC. So any help would be good. This is the Complette Fosgate System.

Replies:

Posted By: i am an idiot
Date Posted: December 13, 2009 at 11:43 AM

If you knoow where the factory amplifier is located, you may have to use an amplified computer speaker to find the input wires. This is an easy process. You will need 2 small alligator clips and some wire other than the amplified computer speakers. If you are willing to try this, I will instruct you on this process.

Posted By: i am an idiot
Date Posted: December 13, 2009 at 1:35 PM

With the computer speakers powered up and volume set to half, radio powered up and volume set to the same level. Ground the wire as instructed in the diagram, Now touch the wire that you have connected to the end of the connector, you should hear a faint sound in one of the computer speakers. Once you confirm that you can hear when you touch your finger to the wire, you are ready to start probing wires within the plug., Touch the end of that wire to each wire in the plug. You should hear audio on 4 or maybe 8 different wires. Once you find these wires. Fade and balance the radio to only one speaker. Probe the wires again to see which wire corresponds to the channel you have playing. Balance or fade to a different speaker and probe again.

Let me know if you have signal on 4 or 8 wires. Also if you have a multimeter, set it to AC volts and turn the volume all the way up on the factory radio. Amp disconnected of course. Ground the black meter lead to the chassis, touch the red meter lead to one of the wires you just found, what is the highest readiong you get on the meter? Leave it on the wire for 20 seconds or so.

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