I would like to upgrade to the high quality LUX for my existing factory 6 disc changer in my 2004 2500HD, but wasn't sure if the amp was compatible with this radio, or only the NAV radio sustem.

The radio can be reprogrammed by the dealer to work with a Lux amp.

All the denali's and Escalades do Not come with nav unit's, some come with 6 disc HU which is what the new program's will copy.

I'll find the Link by Tom that gives you the instruction's

DD

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Here's one by Ben that gives the details for the Nav Lux switch. Good reading. http://www.dieselplace.com/forum/showthread.php?t=40437

And here's the one by Tom that gives instructions for A lux amp install and reprograming the 6 disc HU to work wit ha Lux amp. http://www.dieselplace.com/forum/showthread.php?t=42323

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