nav's
Ruth, Tomorrow my wife will have her Seville at the dealer for key and lock issues. She is supposed to receive an answer from the parts dept. if our Preminum care package we paid for recently on our 04 will give us the free upgrade Nav disc. He, the parts man said yes but will have a clear answer for me tomorrow. There seems to be some differences too in the extended warranty , the Preminum care one and the GMPP which is really different
The 04 Nave that you have should not be a problem since your mostly taking major roads. Just keep current maps handy if you need to recalculate around an problem area.
My problem is that a new nav disc costs almost as much as a new Garmon that I can take any where! Jim