communicating with car central display unit

Discussion in 'Embedded Systems and Microcontrollers' started by wellyboot, Oct 13, 2008.

  1. wellyboot

    Thread Starter Member

    Jun 1, 2005

    I have a Vauxhall vectra and sinse removing the original stereo which used to display RDS data on the central display in the car, I have been thinking about using the central display for something else for example the inside temperature of the car, ill be using a pic micro with picbasicpro.

    Does anyone know the communication protocol for the display unit?
    and how to connect to it? ie which pins of the connector for the display unit do what?