I used another review but I like the video at [.] to help you through the process. I didn't find this pre-installation video and wish I could find it, but I was able to find out for myself. However, I used the power wire that goes to the 12 volt power box in the back of the van to power the wiring harness, not the extra 12 volt wire from the battery. I'm not an expert and can anyone tell me why this isn't working, but so far so good and I still never use the 12v power adapter on the back as the outlet is right next to it. Just something to consider, it will make your life a lot easier if you don't have a ride like the guy in the video.
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