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CANBUS Anyone?

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  • CANBUS Anyone?

    I recently bought an October 2008 Citroen C4 Grand Picasso. It uses CANBUS, which seems to get in the way of any aftermarket HU kit I want to fit.
    I can go into further details, but does anyone know about and can advise me on how to proceed with CANBUS?
    BMW. For when you don't need to prove anything, but you do, you do!

  • #2
    I can say to you, have fun. This is the reason that I haven't replaced the head unit in my 2007 Chevrolet HHR, the stock one is too tightly integrated with the rest of the vehicle electronics and replace it (although possible) means losing:
    * adaptive volume
    * turn signal clicks
    * warning chimes
    * steering wheel controls even for cruise/trip odometer (iirc)

    However, there are companies that provide interoperability adapters for factory systems, Metra comes to mind. They make a GMLAN integration module (GMLAN is a protocol that runs on top of CAN bus) that reenables warning chimes/turn signal clicks/adaptive volume for late model GM cars. But it costs like 200 dollars IIRC.
    I have no idea if one exists for Citroens.

    I hope this helps.



    • #3
      i am on the same boat....
      i am buying a 2011 Ford Fusion SEL (comes without SYNC DVD Screen). It comes with 12 sony speakers and stock amp and I wanted to use those alongside steering wheel controls but CANBUS seems to get in the way.
      I`ve found on ebay a 100$ "Radio replacement interface Wire Harness" that seems to do the trick (it even have a wire for IGN so i wouldn`t need to cut mine for startup/shutdown controls -- 3 yr warranty will not get voided).
      But yet I havent got my car and still building my project at bench so looooooooooong time yet to come before I put it on the dash
      Search over ebay, you might fish up something.


      • #4
        Just lash a resistor onto the sensor circuit. You'll need to look around for the correct value.