VW Sat Nav Replacement

[Scream]

Hi guys I have a 6n2 GTI with the optional extra sat nav. Unfortunately it's not as good as I expected and all the buttons on the left hand side are sticky. I want to replace it with something that will allow me to connect my iPhone and use it as a handsfree, charge it and obviously play music. I don't mind having a cradle for the iPhone as I have a sat nav app so a cradle would actually be quite useful. Or if there is a way of keeping it in there but wiring it up to use as a handsfree and with the iPhone I'd do it that way as well?

As a side note, is there any way of make the buttons un-sticky

Any help would be much appreciated

thanks

[Bradley]

Do you still have the Sat Nav unit from your car?.