Tvbveb I have not use the flash to pass garage door opener but I do have the one made by [email protected] I have use his on the 1500 & 1800 they work great, if you don’t like the responses that you get on flash to pass check with Jon, also if you have a problem he is great on support.
I don't have the f2p either, but I have the one made by Autoswitch. It takes 2 quick flashes of the high beams and activates the door opener. It has a small led that indicates operation, is completely weathertight, and I was very impressed with the quality of the setup. An incredible deal for the under $30 price tag. Works perfectly. You can see more in my post (2nd down) here: http://www.gl1800riders.com/forums/view ... autoswitch