This question has probably been asked a thousand times before but i'm gonna ask it anyhow. Will a trip computer just plug straight into the dash ( is there a plug there for it) or is it necessary to run extra wires?

nope, need to run a data wire - have a look in the tech docos will have all you need!

Yeah thanks, I suspected it would be there somewhere but thought it would be easier to just ask the question first incase you could just plug it in.