It sounds like there should be a wire somewhere that connected to a small screen. Either that or they installed one that used a small screen built in to the rear view mirror, and swapped it out with the OEM mirrror before trading it in. If the wire is up by the mirror, that could be the case.
Do you have the MyGIG screen? If so, you can buy lockpick, connect the wire to your stock MyGIG, and the reverse camera will work. You might even be able to skip the lockpick and just change the jumper settings on the back of your MyGIG unit - check the lockpick install instructions for details.
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2008 Aspen
All options, 4x4
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