gm oem dvd in dash

Hi all, new to site and finding alot of info helping me. here is my question. I have an 03 pontiac montana that does not have factory dvd system. was hopeing i could install a newer dvd/cd unit from newer gm like elnclave or acaidia or something on the lines. does not need to have screen or nav unless it can work as well... am fine with just the double din dvd and cd player... just wondering if there is a way to get the wiring correct to work and if my montana has the proper wireing that can be converted to plug into the newer radio. thanks in advance for any help... thanks

It can't ber done. The newer GM radios use a totally different data bus that the radios work off. You are far better off installing an aftermarket radio with the features you want.sparky