Cadillac Repair: 2001 Cadillac STS, cadillac dealer, cadillac sts

Question
I recently acquired a 2001 Cadillac STS with less that 2k miles on it and I was trying to use the navigation system and it has discs that don't list all the towns or streets is there an upgrade available for it? My $150 TomTom has all the town and cities in it.

Answer
Contact your local Cadillac dealer service department and ask. I am not positive, But I believe there is a compact disk update that inserts into the CD portion of the navigation system in the trunk where you insert the updated CD disk that you can purchase from a Cadillac dealer.