ADD-GM24 pinout?
Heel & Toe
Joined: Sep 2007
Posts: 22
Likes: 0
From: Copperopolis California
I have the same harness in my system. I cut off the clear connector and spliced in RCA jacks that I got from radio shack and it works like a champ.
Mine had microscopic numbers on the pinout connector as you call it. I traced them back to the connector that goes into the stock harness using Komoman's reference for the stock line level outs for the C6 on his website.
#11 Right Rear Positive (Purple) goes to A11
#6 Right Rear Negative (Dark Purple) goes to A10
#15 Right Front Positive (Grey) goes to B11
#8 Right Front Negative (Grey) goes to B10
#13 Left Rear Positive (Green) goes to B8
#7 Left Rear Negative (Green) goes to B9
#17 Left Front Positive (White) goes to A8
#9 Left Front Negative (White) goes to A9
Hope that helps.
Dave
Mine had microscopic numbers on the pinout connector as you call it. I traced them back to the connector that goes into the stock harness using Komoman's reference for the stock line level outs for the C6 on his website.
#11 Right Rear Positive (Purple) goes to A11
#6 Right Rear Negative (Dark Purple) goes to A10
#15 Right Front Positive (Grey) goes to B11
#8 Right Front Negative (Grey) goes to B10
#13 Left Rear Positive (Green) goes to B8
#7 Left Rear Negative (Green) goes to B9
#17 Left Front Positive (White) goes to A8
#9 Left Front Negative (White) goes to A9
Hope that helps.
Dave
Le Mans Master
Joined: Nov 2004
Posts: 8,718
Likes: 20
From: Dyer IN
Cruise-In IX Veteran
idk what you did but you should take the rear left and rear right and solder on rca plugs and run those rcas to your amp
otherwise you sure ur sub is wired properly to the amp
otherwise you sure ur sub is wired properly to the amp
Thread Starter
Advanced
Joined: Aug 2007
Posts: 88
Likes: 0
From: Lexington Park Maryland
I don't know what the problem is here. I think the HU has some control over the keyless entry. Just sitting in the car, with radio out of dash, I get 5.5 VDC from every audio line out, measured to the frame of radio. These voltages are taken from the rear stock connector, with no ADD-GM in the circuit. Looks like I'll go to plan B, and tap off speakers.
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Le Mans Master
Joined: Nov 2004
Posts: 8,718
Likes: 20
From: Dyer IN
Cruise-In IX Veteran
add24 is the way to go splice in the rca's and plug it in, i do this regularly and never a problem. tapping at the speakers especially for a sub wont work the lows only go to the subs in the doors
Thread Starter
Advanced
Joined: Aug 2007
Posts: 88
Likes: 0
From: Lexington Park Maryland
I hear you. My HU connector matches the Kokoman photo, and measured voltages to frame. My amp will not take 5v DC on the sig input. This is a stock 07, has GM changed it's wiring scheme? I'm thinking of adding two DC blocking caps to sig wires. Comments?
