Ok here is a new challenge for everyone (looking at Brian and Jochen )

I have a 2003 Range Rover with MKIV Sat Nav, DSP and built in telephone module (the kind you put a sim card in) with an eject box in the arm rest.

It has voice recognition now, and i can control the nav and phone by voice.

I want to upgrade to bluetooth (either by TCU or ULF but prefer TCU because of price, and the fact i wont require a pairing button).

Obviously I already have the microphone, but i doubt there will be an antenna so i will purchase one of those.

My question is will the TCU or ULF module work? and would i remove the current phone module (whereever it may be) and replace with the TCU or ULF module?

I'm willing to experiment, and use navcoder/post results so everyone can share the info.

Cheers