Hey i want to install head rest monitors in my 2005 audi a8l.. now i want all the control from the front MMI controls, except i was wondering if its possible to have MMI running normal infront but have the rear monitors as TV or DVD and will even show what shows up on MMI screen with audio also coming from the cars system? is this possible? what would i need exactly? and if this were done ... would the car have any electrical issues?