Hussein,
As I'm sure tony will mention - don't leave the empeg in the car. No matter what you do to secure it, it can be stolen - worst case, they take the car.
However, there is a standard laptop locking feature on the mk2, which can work in conjunction with those laptop locking chains that you can get - I guess that anything that will fit in there will do the biz.
As for the wireless sync - I believe that there are several people who have managed this - Rob or Hugo definitely have, so it is possible.
Take a search on the board for 'Airport' or 'Wireless' and you should find some other posts.
HTH
Cheers,
Paul.
Paul Haigh, Reg. 4120
(mk1) 6GB, Blue, 00254
(mk2) 12GB, Red, 00357
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Paul Haigh, Reg. 4120
(mk1) 6GB, Blue, 00254
(mk2) 12GB, Red, 00357