I originally posted my response to this thread
http://www.hdforums.com/m_1308741/tm.htmbut feel that since this issuch a cool mod for a garage door opener I thought it would get more visibility on it's own:
It went well! I have a Genie garage door opener and it happens to run on 12 VDC. I soldered 2 wires off thebutton inside a spare remote that I had. The Auto Switch connects to 12VDC along with the remote. Both are grounded and the Auto Switch gets it's trigger from the high beam wire that goes to theheadlight itself.
ALED is also included so you can tell if your garage door remote has been activated.I mounted the LED above and center of my speedometer and tach. It turns on red when the bike is powered up, it flashes green/red when you toggle the high beam switch and it goes solid green when the remote had been activated.
This is very easy and straight forward on an Ultra once you remove the outside fairing half. Every connection is done there and both the remote and Auto Switch are hidden there as well.
The remote/Auto Switch are together on top of the stereo next to the CB.
Here are a few photos: