I have a Visteon HD radio with the remote screen and the cable made by MitchJS intended to connect to the serial port of a computer to act as an emulator for the remote. Priced to move quickly at $20.
Check out my GMC Savana worklog.
Remaining tasks to facilitate vanputer installation codename "Enterprise":
- Edit skin to liking.
- Get compatible phone for mobilephone.net.
- Facilitate HVAC control.