Wife brought my debit card to me, while I was getting my '18 Silverado Midnight Edition serviced, and traded her '16 CR-V in for a '19 GLC 300. It has 19K and change on it, was a Enterprise rental for about a year, no NAV card, and only one key. I'm not going to do a lot of mods to it, like I have my truck. But I may get all forward facing white lights on with high beams, live down some dark roads. Could use some help getting a NAV card and another key. Suggestions?