
horn sound setting method is as follows: 1. Prepare another USB drive (cannot use the dashcam USB drive), create a new folder named Boombox in the root directory of this USB drive. 2. Put the audio file into this folder, then insert this USB drive into the car (insert directly into the expansion dock, if there is no expansion dock, a USB-C adapter is needed). 3. Open the main menu on the car's dashboard - Toybox - Stereo Speakers, turn on the "Horn Sound" switch, select the file from the USB drive in the dropdown list, and set it as the horn sound.


