The Tour comes with one switched power outlet in the glove compartment on the left side of the "tank", and one in the trunk that is constantly powered.  They are both BMW-style powerlets, meaning that you will need an adapter to plug in your cell phone.  And so are the power outlets that Victory sells for the bike (by the way, the outlets you can install will plug directly into the wiring harness, so there is your switched power supply if you need).  As far as the Sirius connection, the entertainment wiring harness already supports a connection for Victory's XM radio option (the module goes inside a little compartment in the front of the right saddlebag).

I have the J&M headsets and lower cords for my communications package.  No problems with them so far, but then I have only had limited use of the bike since I am temporarily away from Alabama.   Be sure you get the Vision connection from J&M; the HD connection will fit, but the pinouts are different and won't work properly (ask me how I know).