I installed the VCI-GM1 adapter because I don't have a touch screen. My adapter has the mini toggle switch so I can switch to back-up view any time I want. As far as the reverse trigger wire, that is in the junction box under the dash by your left foot. I believe it is a light green wire.
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2003 Pewter, SunRoof, Nav, AirHorns, 6 disc in-dash cd changer, B/U camera, ipod
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