din is like a aftermarket cd player...i dont remember the rest of htem

DIN = German Institut for standardization
= deutsches institut fur normung

it means "Standard Size" in german i beleive. i dont know why they would use a german abreviation, but form what i understand thats where it comes from.

why waste your money on a stock radio? when you can get a aftermmarket that probbaly puts out more power and goodies like crossovers and stuff

DIN is just a measurement to see if a specific deck will fit nothing more

isnt din like regular, our cars have 1.5 din, and i know my budies car has 2 din, isnt it like a measurement? 1 din == ~2in?

Yes single din is the most common size as far as the other sizes go im not sure how they do it i just got an adapter and put a single din in my bonnie, so...