About that Garage Door option - I was talking to someone who bought one (don't remember who offhand) who told me that it's a remote activated switch that you tie into your garage switch. You could actually use this remote switch to power other things so you are not limited to a garage door. An automated fence gate or lights come to mind. It's something to think about. I think it would be easy to adapt to tripping some accessories function on the VX as well - such as a rear-door popper.
I'm installing an after market alarm (with auto-start) into my VX, so I've never explored the possibilities... perhaps someone out there is more adventuresome?
-- Best, John