:greetings-wavingblue: Welcome :text-welcomewave:
I think it does depend on the system fitted to the car. If it's the RT6 unit you can stream via Bluetooth from any source, but I'm not sure that the NG4 system does that.
Is the car a mk1 or mk2? I think all the mk1's had the NG4 system? But I think all the RCZ's have an audio jack so you can always plug your phone in via the headphone socket.
Someone on here who has a Mk1 is probably about to shoot me down in flames, cos not having had one, I can only go on what I've read on this lovely forum.
In any case, you don't want to be listening to any Namby pamby music, turn the volume up with your right foot, and fill your ears with the smooth sounds of the Z :auto-car:
:beer:
Ps. Don't forget the photos when your dream machine arrives. :thumbup: