OEM 2003 Rear Entertainment System swap to DVD

All,

I'm wondering if there anyone who has swapped out the OEM VCP rear entertainment system, Audiovision, with a DVD player while still using the original connections.

I'm interested in swapping out the old VCP and putting in a DVD player but using the same connections, not having to use the aux connectors.

If there is a DIY or walk through it would be great. I have not seen one in my searches yet.