Mine is a May 1998 model Elite and the Carin system is fitted as standard. The screen is at the left of the ashtray and the guts are in the boot above the ns wheelarch.
I don't use it cos the control knob just above the handbrake lever is a freekin nuisance cos it activates at the slightest touch then the cow nags you and won't shut up until you gag her. I ended up Bluetacking the cap off a small WD40 over it to stop it getting touched by accident.
Mounted a TomTom 720 instaed and it is magic!
GudLuk
The Carin works, but sluggish with up to date maps. Its accuracy is stunning, even without a gps signal (unplug the aerial, and see how good it is).
The screen is too low, and the control button keeps getting knocked by passenger.
That said, I haven't removed the Carin for my MV6. Its always there if the primary satnav (Siemens NCDR1500 + CID) lets me down.
Wouldn't go back to my standalone TomToms, partly becuase I gave them away, but also its another device to carry around. Oh, and the scrotbags will smash your windows, as they will know its in your glovebox when they see the telltale circles on the screen.
One of my pet hates is the retards who mount their electronic gizmos right in the middle of the screen, reducing their visibility. If my car fails an MOT because an airfreshener just dangles from mirror, I think their should be rules for those idiots too stupid to mount their gizmos properly.