Universal DIN Repair KitDIN stands for "Deutsche Industrie Normen" which the Germans starting using to standardize radios in Audis, BMWs, Mercedes, and VWs in the mid 80s. It has since become the industry standard. These kits enable you to mount a RetroSound Motor 1, Motor 2 or Motor 4 radio into vehicles that have been either altered to a modern DIN opening (7 inches x 2 inches) or originally came equipped with a DIN sized radio. Special adapter brackets and a cage are