Initially, I am using the latest version of Garmin GPS unit for tracking the exact locations or destinations. With the assistance of Garmin GPS unit, I can track the unknown routes or destinations exactly. To get the recent road maps, and softwares, I want to update my Garmin GPS unit without using USB cable. Really, it is a challenging job for me, hence I seek for the best technical guidance. I don’t have rich experience for Garmin GPS update, so I want to take the specialized assistance from Garmin experts. I am getting stuck in the process of updating Garmin GPS unit. Could you please suggest the best methods to update Garmin GPS unit without a USB cable?