Help!! DVD Player instal, dont want to use FM Modulator

[JMV1210]

This coming Monday 11/29/04 I am having the Pioneer Avic88, w6210, back –up camera, and dvd player installed. I am keeping the stock radio as of right now.

With that said, the installer has told me that the only way that I can get the sound of the dvd player through the speakers of the Hummer is to use a FM Modulator. He said the only other way is to change out the head unit or to tap into the xm part of the radio. I have a 2004 Hummer, and I am not sure, but think it’s not XM ready.

So before I get this work done my question is, is there a way to get the dvd player to play through the radio outside of changing the radio out?

Am I correct that 2004 models are not XM ready?

What are my options???