Is there an adapter for my iPhone 5c that will make it work in my VW Jetta?

Trying to find an adapter that will allow me to connect my iPhone 5c to the dock in my VW Jetta so I can listen to music from my phone. Anyone know of anything that works or if that's even possible?

Added (1). It's a 2007 Jetta - it doesn't have bluetooth.

BLUETOOTH… You should try it sometime