DIN stands for "Deutsche Industrie Normen" which the Germans starting using to standardize radios in Audis, BMWs, Mercedes, and VWs in the mid 80’s.  It has since become the industry standard.

These kits enable you to mount a RetroSound Laguna, Hermosa or Long Beach 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 included to install the radio into your DIN dash opening.

(Radio Not Included)

Short Video on fitting the Retrosound DIN repair kit.