Generally the way the safety feature works is... in order to use certain functions like rerouting a route on the nav or watching a DVD the vehicle needs to be in park. You can still use the radio, music features and even listen to DVDs while driving.
On most aftermarket multimedia systems you can defeat the safety feature if needed through the use of aftermarket modules and or other means.
Its there for your safety and more of a CYA than anything. It is however, a royal PITA to pull over just to change your route on your nav and that is why most folks install an override.
This is just for your info and by no means am I condoning overriding a safety feature. i hope this helps.
-Lil'
On most aftermarket multimedia systems you can defeat the safety feature if needed through the use of aftermarket modules and or other means.
Its there for your safety and more of a CYA than anything. It is however, a royal PITA to pull over just to change your route on your nav and that is why most folks install an override.
This is just for your info and by no means am I condoning overriding a safety feature. i hope this helps.
-Lil'