Audio, Video & Nav
Bought the 2020 upgrade, from the GMC promo email. It’s junk. They opened 23 miles of highway in Greater Phoenix, 4 lanes East and 4 lanes west, so it’s 8 lanes of major highway last December, is it in the upgrade for 2020? Nope.
Just wasted $99...
It’s not an actual 2020 update, so unless...