hi friend, I have just upgraded my RF receiver to the new style one, becos the old style kept reading signals from houses/cars down my road, and hence waking up the becm when locked/closed up and draining the battery every 2-3 days.
You may not have this problem, so if you want an old style one, Ive got one to go ................ otherwise, if you want a 2000+ receiver, LR is the only place to go .... tried getting one myself, but is a LR only spare part
all the best