: These fix hardware bugs, improve connection stability, or add support for newer car models.
From your car's screen (while in RoadTop UI):
Updating a Road Top module isn't as simple as clicking "Update" on your phone; it usually requires a manual process using a USB drive. roadtop carplay update
You cannot use a universal file. Using the wrong firmware will permanently brick your MMI box.
Q: How do I update my Roadtop CarPlay system? A: Connect your phone to your Roadtop CarPlay system, navigate to the settings menu, and follow the on-screen prompts to download and install the update. : These fix hardware bugs, improve connection stability,
The factory wiring harness has a large "Quadlock" connector. The Road Top kit comes with a "pass-through" harness. You disconnect the factory Quadlock, plug it into the Road Top harness, and plug the Road Top harness into the head unit. It is physically impossible to plug these in wrong—they are keyed.
This is not an "update" to your car's system, but rather a second screen. It plugs into your 12V cigarette lighter. It has a built-in speaker (or uses FM transmitter to play through your radio). Using the wrong firmware will permanently brick your MMI box
This is a "semi-brick." Don't panic.