I'm in need of an updated navigation DVD for my 2003 DTS. Mine is outdated, (2002). Is there anyone who has the current updated one 2007-2008? I didn't want to give GMNav $199.00 if i didn't have to. Thanks for any help!

I have a 2003 DTS with a 2002 Navigation DVD and I'm in need of an updated DVD 2007/2008 if possible. I don't want to give GMNav $199.00 for the latest one if i don't have to. If anyone has an updated DVD for sale i'd be interested as long as it works for my 03 DTS.

I have a 2006 part number 15923893 If it will work for you I am wanting 40.00 plus 5.00 shipping. I can take paypal.