Its a fairly easy conversion to do, but takes a bit of time. As stated you need to wire in the 4th plug which also joins to the trip computer switch into your existing harness, as since its an accliam you will need the the AC switch in the dash, but you need the plug to run your trip computer (4th plug). the easiest way is to get a statesman loom and splice the plug into your loom and you will need the plug for the statesman dash clock too. Since yours is a vs acclaim i assume it has dual air bags. This mean you will need a vs statesman or caprice dash as they are equiped for dual air bags. You will not need to touch the centre console unless you want too, but if you dont have electric windows you will either have holes there or switches that dont do anything. i have a standard centre console since i have a manual anyway. the other thing you must buy is the door vents as they are different and the dash ends are also a different colour scheme.
