I'm going to buy double-bin(i don't know, anyway the big cd player) cd, and i'm thinking about buying 3gen's tib's one, cuz it will be cheaper than others right?

and my tib is not a double one, it is small(usually almost every car's), and if i wanna buy double, what parts should i get? and where?

I'm thinking getting dash and board inside the dash from Hyundai dealershop, is that righT?