About the Scosche CGM01 Wiring Interface
The Scosche CGM01 wiring interface allows you to integrate a high-powered aftermarket receiver into select 1982-up General Motors vehicles with premium factory systems. The package includes the OEA-4 adapter and a GM-specific harness. The OEA-4 unit has output-level gain controls for each of its four channels which can be adjusted to properly match the new receiver to the factory amplifier.
Note: If you haven't already, please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this adapter is compatible with your vehicle.
Details:- 4 speaker-level inputs
- output level adjustments for all four channels
- works best with high-powered aftermarket receivers
- dimensions: 3-15/16"W x 15/16"H x 2-1/16"D
- 1-year warranty
What's in the box:
Scosche CGM01 Wiring Interface owner's manual
- OEA-4 OEM Amp interface (with 8-wire input with bare wires/8-wire output with black rectangular connector)
- Vehicle power wiring adapter (white connector with one yellow 6" wire)
- Flat-blade screwdriver (attached to interface module)
- 13 Crimp caps
- Instruction sheet
Customer reviews for Scosche CGM01 Wiring Interface
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Features
Compatibility: The OEA-4 (model C4GM01) is a non-electronic interface that allows an aftermarket high-power stereo to integrate into select 1982-89 General Motors vehicles with Bose premium factory systems. Please check the Crutchfield Vehicle Selector for compatibility for your vehicle.
Adjustment Gain Controls: Four rotary gain controls (front left, front right, rear left, rear right) are located recessed inside the adapter chassis. There is a small flat-blade screwdriver attached to the adapter's case, and its use is recommended. The controls are very fragile and sensitive, and a slight adjustment will change volume dramatically.
Harnesses: The adapter's input wires are approximately 5-1/2" long with bare ends. These splice to the new receiver's speaker output wires. The adapter's output wires are approximately 11" long and terminate into a black rectangular Molex plug. There are also 4 additional wires coming from the black connector that should be spliced to the new receiver's harness. There is an additional white Molex plug with one yellow 6" wire for the constant power connection to the receiver. The two Molex plug ends are molded to match with factory wiring harnesses. Crimp caps are provided for wire splices.
The Scosche CGM01 Wiring Interface replaces these items
Scosche FAI-1A-GM1
1978-up GM Vehicles
- Lets you integrate a high-powered aftermarket receiver into select 1978-up GM vehicles with premium factory systems
- MOSFET 45 Compatible
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Customer Q&A
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This product was easy to install and works well. However, the instructions are not clear on how to connect the wires that power the speaker amps. Fortunately another review solved the issue for me.
Mike from Carmel, IN