One immediate problem was mounting this on the AE, as the usual method uses the bolts from the clutch mount to position the unit. After a bit of head-scratching (and not much luck with a google search), I found a solution.
Pics tell the story. Drilled a few holes through the turn-signal housing and used appropriate spacers. Very solid. Bolts are M5, and the spacers were unused bits from a flat-screen TV mount I had sitting around. The rear spacer was ground at an angle to match the housing, and similar angled spacer was used under the head of the bolt to provide a solid surface. Note that the stiff cables from the JCMB also keep if from pivoting and help stability. Position is ideal. Screen is easy to read on the bike, the PTT button is where it should be for easy reach but not in the way of the grip with gloves.
Hope you don't mind the post, thought I'd document this for anyone else looking to mount the JMCB on an AE.
Edited by diablo456, 24 March 2012 - 08:38 PM.