Have a 2019 C43, options that year were no nav options, a vehicle pre-wired for what was called Mercedes Garmin Nav or Multi-media Nav. The Mercedes Garmin Nav required a SD card be purchased at the dealer. Plug it in and it activated. Still $3000 cheaper than the MultiMedia package. You need to look at the window sticker and see if your car was pre-wired or not. If not, there are no options, sorry. BTW, I have the SD option and it includes Live Traffic and works great with no monthly charges.