im just wondering , how much should i pay for a used (2 -3 years)
navigation system in-dash with a 7" screen.

 

What's the brand? Better yet...what car did it get pulled out from?

 

i dont know the model but its alpine, navigation system with the in dash flip out screen, its gonna be from my friends bmw, hes parting it out. i just wanna know the price im gonna expect, i dont know for how much he bought it but he used it for maybe 2 1/2 years now.