I found it a very straightforward operation. Put it in around 6 years ago, so
I don't recall the exact model number. I used a Harada antenna. At first I
thought that there was only one possibility, going back to Joel Walkers web
page (still available, Joel?). I posted the details to the list at the time.
Used the surface mount adapter (inner and outer) parts that were on the
original factory unit. Removed the drivers side headlight to get working
room. No problem. Everything fit perfectly. Been going up and down without a
problem for 6 years plus.

frank Grunthaner