The DC unit is terrible for satnav with a really poor screen I'd steer well clear, we've been testing co Pilot 5 on smartphone and its so much better than the DC system you'd kick youself if you spent that kind of cash. It'd be cheaper to do a head unit replacement and buy an Ice Link for your pod in order to get it working.

I'm sure i saw someone on the forum who had it working with the standard head unit and they didn't use the FM TX units either.

LP