2004 Nav System Challenge

[hummer17]

CMB,

You can program the Nav at above 8mph, but I can guarantee you that it is absolutely the exact same unit - possibly just with different programming / flash ROMs. Trust me, I did this several times when driving the Escalade and nearly crashed.

I am more concerned about the 6-CD Changer interface. There has to be a way to do this.

There is a member here named Crash that is a H2 Tech that may be able to answer some of these questions or at least open up the dash at work and see if there is an interface for the factory 6-CD changer.

By the way, I also tested playing a DVD movie on the Caddy Nav system. It would not work in park or while driving. Said it could not recognize the disk. Again, probably programming of the flash ROM, not anything mechanical/functional with the unit. IF you could find someone that knew how to program the Nav system you could be in business. They are made by Delphi, maybe we could get a technical service manual for the Caddy and one for the H2 and figure it out...

Let's keep investigating.