4
i have seen a few different idea on here so I thought i would share my install
the bottom of the faring on the S model has a nice little spot to put the opener, I used 3M double sided tape with a zip tie to make sure it stayed in place
I found a momentary switch at radio shack to put in the stock hole in the fairing, I did have to enlarge the hole slightly for this button since it has a 1/2 inch hole requirement
complete
i used to have a small remote (the one on the left) that worked well on my key ring but it stopped working so i bought the newer version (on the left) but it didn't have a very good range and the buttons were hard to hit with gloves on.