I did something similar to this at one time. I have a truck. Installed a keyless entry system on it. It was the generic kind made for cars, vans, and trucks. So when it was all installed, I had one function left over.... the trunk popper. What I ended up doing was using the relay contacts for the trunk output to short out the button on the remote garage door opener permenantly mounted in my truck. Now I can start the truck and open the garage door from the same remote. Ofcourse in my case it was kind of a remote controlling a remote control, which is not what your original plan was, but an idea to play around with.
Wisdom is knowing what path to take next... Integrity is taking it.
Ryan Miller
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