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+1It won't harm the courtesy circuit because it completely isolates the courtesy from the constant power by it being on a switch like what he is using!! If he was tapping the courtesy circuit power into the constant power side of the switch, then all he would need is a diode and he would be good to go!!
I never read exactly how you wired up the switch or even what switch you all were using. I was just trying to make sure that no one would Accidently zap their BCM.
But pretty much on a weekly basis I still see people that have their fog lights running all the time cause an ignition wire was the best wire they found to power the lights.
No worries...in all honesty, just having foot-well lights was an improvement. I never thought of controlling them independent of courtesy power. It's a great idea & simple to do.Sorry cameron, just thought maybe this would help those who would like to do a switch b/c i love it. Drove a couple of times w/ them on only.. Love it. Thanks very much for this idea and posting it. . and those that helped me out w/ my dilema.. ha ha..