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Originally Posted by hummer74
will these work in an older 04 nav unit? the non touch screen?
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I believe it will work. Suggest you decide for yourself and go to the GM Nav Disc Center www/gmnavdisc.com and click on the underlined link (availability) in the following:
Check on the availability of disc updates for the navigation system in your vehicle
On the next web page enter the Make, Model and Year of your H2, and it should tell you for a HUMMER H2 2004 that the correct part number is GM NAV DVD 15906573.
Hope this helps.