HTC Touch Cruise and Bluetooth car kit

[Guest gregor__g]

Recently purchased HTC Touch Cruise (02 XDA Orbit 2 with Windows Mobile 6) and paired with existing Pama Bluetooth car kit. Enetered pass code and all seemed well... indicator led on car kit lit up to confirm pairing. Problem is that any calls do not mute car stereo and the telephone conversation is not directed via car kit ! Previous Nokia N73 worked ok with this car kit. Any suggestions ? Have contacted HTC but no reply.