cheers for all of the replies everyone. all clear, but my o/s question in a nutshell is, if i own car "A" with 16" wheels, can i take wheels / tyres / valves straight off of car "B" and put them onto car "A".
understood that new valves need programming - but would the current, functioning valves off of car "B" still need calibrating to car "A"?
< desperately trying to loose the 16" wheels! >
Simple answer -Yes
each set of sensors has to be programmed to specific receiver so that they are recognised.