although the D3 is nice and can be had for cheap, i would suggest staying away from it...two reasons: you have to have the navigation disk in the drive all the time. second, navigation on the D3 tends to break down quite often...usually the software or some chip that usually goes bad (dont remember exactly). If you want to go double-din, get the avic z2 or z3. those have a built in hard drive and the navigation is MUCH more stable....