[archwerks]

Thanx xdrive 50 i.
I didn't time it but once i've taken kids audio bk cd out of the drive, but dvd nav. disc still in, the system use acceptance comes on sooner, once i push to accept the rearview cam comes on.
Wish there is an page on the settings menu to tell idrive to set which accessory system has 1st prioirity, 2nd priority, etc.
Or simply an off switch on the nav system, because we don't always need it when we're travelling on familiar roads.
BMW should make the idrive system upgradable as part of maintenace service.