need help- looking for a iphone 4 car holder than plays music?

[The Game 161]

Hey i'm looking for a car holder for my iphone 4 that I can put in my car while still playing my music from the phone. Any good devices out there? the only one I've seen is

Griffin RoadTrip FM Transmitter with SmartScan RDS + Power

but it doesn't work for iphone 4

any suggestions? I'm UK based.

 

[theautopilot]

Best solution - buy a Brodit with pass-though connector and they buy a cable that runs into your stereo's AUX input.

Bluetooth and FM solutions suck IMO.