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Scosche CHA02 Wiring Interface

Allows you to connect a new car stereo to the factory amp in select 1987-up Honda and Acura vehicles

5 Reviews

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Item # 142C4HA02

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Overview

Our take on the Scosche CHA02 Wiring Interface

The Scosche CHA02 wiring interface allows you to integrate a high-powered aftermarket receiver into select 1987-up Honda and Acura vehicles with premium factory systems. The package includes the OEA-4 adapter and a Honda-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.

The Scosche CHA02 wiring interface allows you to integrate a high-powered aftermarket receiver into select 1987-up Honda and Acura vehicles with premium factory systems. The package includes the OEA-4 adapter and a Honda-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

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so. You can also call an Advisor for more information.

I kept the stock Bose Amp in my car and without this interface I wouldn't have been able to. Being able to up the gain screw adjustments was a must to get the sound and volume. I wouldn't even have known that I needed this if it was not for Crutchfield's help.

Sandra, Ukiah, CA

What's in the Box:

  • OEA-4 OEM Amp interface (with 8-wire input with bare wires/8-wire output with white rectangular connector)
  • Flat-blade screwdriver (attached to interface module)
  • 13 Crimp caps
  • Instruction sheet
Reviews

Scosche CHA02 Wiring Interface Reviews

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Features

Compatibility: The OEA-4 (model C4HA02) is a non-electronic interface that allows an aftermarket high-power stereo to integrate into select 1987-95 Honda and Acura 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 white rectangular Molex plug. There are 5 additional wires coming from the white plug that should be spliced to the receiver's wiring harness. The Molex plug end is molded to match with the factory wiring harness. Crimp caps are provided for wire splices.

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