I have a 05 Caravan with the entertainment package. The in-dash cd/dvd unit will not play or eject. This has happened twice already and both times the unit was replaced with a remanufactured unit under warranty. Now the vehicle is 2k miles out of warranty and the cd/dvd unit has failed again. The dealer wants $550+ to replace the unit with another reman. Does anyone know where I can purchase a compatible replacement which will work with the rear video unit? Thanks