hi i know its not for a vectra but i need to know somthing, i am going to fit a kenwood in a friends corsa, its a 02 or 52 i know im going to need the facia adapter but do i need a wire harness or will the iso connector fit straight in. i didnt know what year the corsa`s became quadlock. and cause i havent seen the car i cant tell what stereo is in there, if its the old one do they have the fakra aerial or not.

cheers chaps