Which CD changer for TravelPilot EX?

[A first posting to alt.autos.ford.focus didn't get any responses, but considering that the TravelPilot EX is used in several Ford models alt.autos.ford might be the more appropriate group...]

Which CD changers are compatible with the TravelPilot EX navigation system (= Blaupunkt) in a Ford Focus Ghia (business pack)?

Can the Blaupunkt CDC-A 03 be used with the TravelPilot EX?

The Blaupunkt web-sites do not seem to offer a clear answer. What it all appears to boil down to is whether the TravelPilot EX has s.c. DMS (ie. "CD-Wechsler-Stueuerung").

Thanks for any help.

Dirk