How would I go about getting this to work? Would it plug straight in, as I want DAB and this has the function, Is It a case of plugging something in the back orrr?

You'll need an aerial for the DAB -the black connector on the back of the radio in order to get DAB. You can either get a film type aerial that glues on to the windscreen or change the aerial on the roof of your car which is more expensive and involved.

It will plug straight in but you will need a new aerial, I used a small film type from dabonwheels http://www.dabonwheels.co.uk/High_Performance_Internal_Glass_Mount_DAB_car_Aerial.html