I paid 343 for it on the Xtron website. Steering wheel volume does work. It takes about 3-4 seconds for it to boot up. I could definitely see blowing the speakers easily happening if your not careful. It has a decent amount of glare to it but it’s still always very visible. You can control brightness on the screen and it also has night mode.

__________________
Current
2006 BMW X5 4.8is Dinan S2 Black on Black

Retired
2004 BMW X5 4.8is Black on Cream
2001 Bmw X5 3.0
2006 Bmw 530i
1996 Bmw 328is
1994 Toyota Landcruiser
1989 Bmw 535i