Well, apparently there is some sort of device I'm suppose to buy for $150,
http://www.directed.com/security/access/haccess.asp I wonder why it's necessary to buy this garage door control unit, seeems like the remote should be able to send a signal to the garage door without one. Maybe the remote can only send signals within a certain band, so you need a control unit hard wired into the garage door opener to recieve the signal from the remote and tell the garage door when to open/close.
Does anyone understand how this is suppose to work? I may just call a big installer in my area and ask them about it. Thanks.