Hmmmmmmmm...  lets see if I can answer these questions without more confusion since I did the install of 660 earlier this year.  Please be aware, I've slept a few times... so here we go:

(1) Flyin Hawaiian - 2011-04-07 1:36 AM

1. Where do I get the 90 degree elbow that turns into the top panel? 
     There isn't one... from the Garmin cradle, you simply twist down the wire into the hole you drill.  It's a tight bend, but I've had no issues at all since install.
2. Can you simply pull the connection out from the base of the mount to get the wires though the hole?
     Not sure I remember disconnecting anything, I just wiggled the wire loom through the hole I cut.  I do recall it was a VERY TIGHT fit, but did go.  Proceed slowly, since the panel is aluminum, you don't want to do any damage to the wiring.
3. Where can I get a grommet to cover the hole?
     I assume you are talking about the hole you drilled into the console?   For this, you cannot use the Garmin wiring loom.  You must purchase the plug-n-play Zumo wire to integrate into the Vision from Ma' Vic.  This will tie the Garmin cradle directly into the vision plug that is hiding on the inner right side of the fairing.  The Vic wire comes with the grommet to assist in sealing the hole.   If you use the Garmin wiring, I don't think it'll match up to the Vision perfectly... may have to do some cutting / splicing. 
4. For an 09 Vision, what color wires are for the speakers?
     If you use the Vic wire I mentioned in #3, this FULLY INTEGRATES the Zumo commands and it comes right out the speakers..... all nice and easy, plug-n-play.  Only drawback is you just have to buy the damn wire harness from Vic.



Hope this helps some..