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You could hardwire them into the truck. No need for OBD.Well… I was just contemplating these steps for the wife’s Gen 3… guess I’ll put that idea on the back burner. I didn’t know they plugged into the OBD port until I watched a YouTube video , just assumed they worked from some manner of door switch. Oh well, I can find another use for $2000. Glad I looked at this thread.