View Full Version : Nav disc info
11-04-10, 11:14 AM
Morning all--new member--just purchased a 2004 Escalade EXT with 10,000 actual miles! My dealer says the up-grade nav disc is part number 20855830. I thought there was a difference between the early Escalades and the later models with the 2007 year being the newer model. Does that not make a difference with the nav system also? He said the 20855830 disc fit a 2010 model. Just want to be sure I am going in the right direction. Thanks--Jim
the 2003 - 2006 escalades navigation units are totally different from the newer 2007+ models. i have a 2005 and i am using disc part number 20855830 in my delphi tnr800 which is the 2010 version of the navigation disc.
11-04-10, 01:08 PM
So what you are saying is the 20855830 WILL work in my 2004 nav system--right?
yes.... but if you want to make sure you can check at http://www.gmnavdisc.com
11-04-10, 10:35 PM
hi, that is the correct part # for a 2004..i just bought one and uploaded it into my 04 escalade.big difference in the nav map after 6 years:) you can buy it direct from gmnavdisc.com for $200 + shipping or find it from dealers on ebay a little cheaper..mine cost $180.00 shipped.
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