Got an opt-imate on mine, works fine last 3 yrs. Socket below seat may be power take off or communications? see where connections go. Not standard fitting from my recolection. Mine had Opt-mate connected hanging behind dummy tank panel, connected to battery near by.
eBay sometimes has opt-imate's for sale. But sounds like you need one now? All good accessory places like motorworks, Motor bins etc have them, or google for nearest stockist.
BMW's offering will work just as well, you just pay a lot more! Not so sure about the latest models/Canbus wiring?
Last edited by kuyajonathan; 27-10-2011 at 04:01 PM.
Reason: omoitted last line, D'oh !
2003 GS Dakar
BMW Panniers, top box, tank bag
+ loads TT stuff that came with it!