sorry if this sounds rather noobish but i dont really have any idea when it comes to cars. i am currently interested in buying a navigation for my 2008 scion tc and i cant decide which to get. would you guys recommend the d3 of the f90 (if i can get either for the same price)?
and also, if i were to get one of these navigation units, would i have to buy additional wires (link please)? and also i think i need to buy brackets in order for it to fit snug?
one more question, would i really need the ipod adapter if my car comes with one already?


