I just purchased a 2005 XLR without GPS CD for USA. How do I get one and how much does it cost?

I just purchased a 2005 XLR without GPS CD for USA. How do I get one and how much does it cost?
The cost is variable--i/e you can get a new one from the dealer or you can buy a later version....but not the latest here on the site if one of the members wants to trade/sell you their old one.

Post a Wanted Nav Disk in the classifieds with the price you are willing to pay.

Regards

I recently saw one on EBay