Another Nav disc question

[fixxxer88]

Hey guys, long time no see
I back on r and r from afghanistan and was wondering if a new nav disc came out in the past year. I was wondering if some one could post the number of the previous and current version and about their release dates. Thanks guys

 

[GM Customer Service]

Welcome back! You can visit www.gmnavdisc.com for nav disc information and to purchase a new one. Hope this helps.
Breanne
Chevrolet Customer Service

 

[steven johnson]

why is gm nav disc so high ? when you can buy a aftermaket gps ( tom -tom, garlin, ect.) unit with free upgrades ?