Klaus, what you are calling the RCM ( Roof Control Module ) is the PTCM on the Crossfire ( Power Top Control Module ), NOT to be confused with the Crossfire RCM ( Relay Control Module ) which is a unit containing relays and circuitry and fuses for engine control functions.
The Crossfire RCM has no relation to any convertible top function.
I realize you deal with a LOT of different manufacturers, just thought I'd point this out.
Hope I haven't offended.