Some cars do not work with the "Default" USB connection mode.
How to fix:
1. Install the companion app (https://play.google.com/store/apps/details?id=com.carsifi.adapter).
2. Make sure that the adapter is synced with a companion app
3. Companion app -> Troubleshooting -> Auto USB mode detect -> Turn on
4. Check if the Carsifi adapter works
5. If the adapter still not working try to select each USB modes manually and test with your car
- Direct Accessory