Today I install the Garmin StreetPilot software on my iphone 4, but i want to use it on my car.
In this moment I allready have the needed cables, whats really missing is the built in app "garmin vehicle display integration"
In garmin's website this app cost's 49.90$. That's right, 49.90$ for an addon that doesn't do much....

Can you help me please?
Thanks