Since were on the topic of garage door openers, anyone have a guess on what one is worth? I have Liftmaster garage door openers and because of the technology, there is no way to connect the HD garage door unit to the system.
Check your other thread from earlier today, I left a response with a link to another thread that shows how to wire the Harley receiver directly to the control panel (wall switch) for the GDO. The thread is about a Craftsman opener, but the high end Craftsman as well as the Liftmaster are made by the same folks (Chamberlain) and the technology is the same.
When I installed my Chamberlain last year I just took the opportunity to do away with the Harley system and use one of the regular remotes that came with the opener instead. It's located inside the fairing and attached to a simple push button I mounted next to my spot light switch. Much better range than what I had with the Harley system, and no dead spots in reception. But if you prefer to keep the Harley system and you can solder a couple wires to a circuit board, you can make it work.
Jerry