iphone 3g to aux + music and phone calls ?

[ocdb]

Hello all, Is there a cable that would go from iphone to aux of radio and be able to use the phone ? receive calls and speak thru my car speakers ?

Thank you all in advanced

 

[MBHockey]

I don't think such an all in one combination exists, however, I got a Kensington LiquidAUX and a Plantronics 925 BT headset.

The LiquidAUX does not play phone audio through your car speakers (it does for voice mails, but not for conversations).