Re: PIAA & OEM switch
The pigtail wire harness that hooks to the OEM switch is marked A-B-C . The switch comes in two pieces. The switch & the pigtail wire harness. The switches were $27 each at the dealership. The pigtail was $35 each at the dealer. I found the pigtail on line for $16 each. Just Google GM part # 12101864
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