Yeah mate power positive, Negative and Low Bus GMLAN (there is a spare plug behind the glovebox that has all these connections) One thing to note with these units are they are VIN Locked to keep with holdens security, first car you plug it into it will burn the vin into the device and will need to be send back to US for reflashing should you want to put it in a new car. Just something to be aware of mate. If you have any other questions give me a yell