why would you need to leave them alone if they sometimes work?

I'm not sure if you were joking with that last comment. If not, re-read my original reasoning for not assigning default functions to the 1 and 4 keys.

And FWIW, I just tested it again on my way to work this morning, and the remote still activates the functions in my car almost all the time when it's facing the opposite direction.

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Tony Fabris