TT Go with fitted phone kit and bluetooth connectivity query

[Vorix]

I have a SonyEricsson K700i with fitted car kit that is hard wired through the car stereo (mutes and plays the call through the speakers)
Can anyone let me know if the bluetooth connectivity options (on either the phone or GO) allow me to see who is calling etc. on the GO screen but still make/take the call through the fitted car kit? Or will it always try and play the call back through the GO?
The SE K700i has really fiddly buttons and useless joystick thing that is all but impossible to use safely when on the move. It's just about OK to accept a call but that's about it. Having control of the phone via the GO screen would be great and another good reason to upgrade my Classic to one of the shiny new ones.

[PatC]

We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
Have you considered making a donation towards website running costs?.
Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!