Success at last! After a frustrating couple weeks of black magic and mystery potions, this forum has led me to the messiah. Although all of these steps have been mentioned here already, I will consolidate the approach that worked for me. And I am convinced that YOU CAN get yours configured. It is very picky. 1) As mentioned, hold 1 and 3 on the VW Homelink (HL) for at least 20 secs to get the fast blink
2) Release and select the HL button you would like to assign (I chose button #3)
3) While holding button #3, I held the remote control inside the car, against the front windshield, under the mirror, aiming back up toward the HL unit, and pressed the button on the remote, holding both #3 and the remote. I slowly moved the remote control upwards under the mirror, continuing toward the HL unit. As I got just under the HL, it went to a fast blink and took the code.
4) I then selected the Learn button on my Genie Garage Door opener one time to get it to begin blinking slowly
5) Next I select button #3 on the HL. It started blinking slowly but did not appear to take. I released it and held #3 again for about 10 secs and Voila! Success
6) Next to verify the process, I repeated it for button #1. That configuration required me to press and release button number #1 3 times before finally finishing Learn mode on the Genie.
Good luck! Believe it or not it can be done!