I am trying to install my sony cdx-m630 into my car.i've encountered a few problems.My car is a 1997 chevy blazer.1)The size of the dash is larger in width as well as length.And i was wondering if there is a dash kit that can accomadate both of them.2)none of the wires in my blazer are labeled and i do not have a diagram.is there a way i can find out myself or does any1 have any websites or suggestions about that.any help would be greatly appreciated.thank you very much.Jason