Thread: Do H3s have "Trailer Brake Wiring Harness Adapter"?
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Old 07-05-2007, 05:02 PM
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Default Re: Do H3s have "Trailer Brake Wiring Harness Adapter"?
Be careful with that Partsguy. The 2006 and above H2s have a different pinout than previous model H2s and trucks!

Also, I am not aware that the H3 has provisions for this harness to plug into. However, GM nicely included some loose hanging wires under the dash for the H3.
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