GM Nav Lux for sale part # 15800001

[mrinstall]

Here's a pic of the radio / nav unit

[hurricane]

will it fix 2003 ?

[guruerror]

Check out this thread...
http://www.elcovaforums.com/forums/s...light=nav+2003

Looks like it will work...but you just need to connect the VSS signal; which is not present in the factory harness on an '03 (since nav wasn't offered that year).