Hi,
1)which is the best suit Persona with below requirement?
a) bluetooth handfree with radio speaker
b)Reverse camera can be installed?
c) Control by steering

2) price with GPS & without GPS.
a) Gps software details
b) can the map be updated manually?

3) Price for additional 2 headrest panel
Can main screen use GPS and the 2 headrest panel display TV or DVD at the same time?