@mrn3ff
3M has lots of different tapes. Not sure what you used. Looking at the rolls on the hook in the garage, I've used 38582 and 03609 in various applications. Both are super strong, have no problems with vibration, and weather the elements well. These are usually available at better autoparts stores (I usually get it at my local NAPA) one is for attaching automotive moldings and I don't remember the recommended application for the other. Either should hold the switch in place for years to come.
I'd like to see pics of the interior install when you get the time.
Boort
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