The full setup, the exact file and folder names, and the things we learned on a real car. Stuck anyway? Email support@faradaysoft.com.
Record anything, pull the audio out of a video in Photos, open a file, or tap a download button on a site with free sounds inside the app's Find Sounds browser. Trim to the best 5 seconds, boost, fade, name it.
Take the car's USB drive out of the glovebox port and plug it into your iPhone (USB-C, or Lightning with a camera adapter). Tap Lock Chime and pick the drive when the Files picker opens. The app writes LockChime.wav at the top level of the drive, forces it onto the drive, and reads it back to confirm.
Drive back in the glovebox. On the car's screen: Toybox → Boombox → Lock Sound → USB. Lock the car from outside. That's your sound.
Boombox folder, WAV or MP3, under 1 MB each, no spaces in the names. The app renames them for you. They show up as "USB <name>" in Toybox → Boombox. Needs its own USB stick, or a drive split into two parts.Tested on a real car. Email support@faradaysoft.com if yours does something different.
The lock chime must be a WAV named exactly LockChime.wav at the top level of the drive, not inside a folder. Several guides say Boombox/LockChime.wav; on our test car that file was ignored. The app writes it to the top level for you. Also check Toybox → Boombox → Lock Sound is set to USB.
Boombox needs its own USB stick. On a drive that also records TeslaCam the car ignores the Boombox folder entirely (tested; Tesla's manual says the drive "can only contain one folder"). Use a spare exFAT stick with nothing but Boombox on it, or split one drive into a TeslaCam part and a Boombox part, and the sounds appear in Toybox → Boombox as "USB <name>". WAV and MP3 both play. File names can't have spaces; the app handles that. Boombox plays while parked.
Yes, with two partitions: a small BOOMBOX one and a big TESLACAM one. The car reads each as its own drive, and so does the iPhone. This page writes the Mac or Windows commands for you. A Mac app that does it in one click is coming.
iOS shows USB drives in the Files app under Locations. If it isn't there, the phone isn't reading it: usually an NTFS-formatted drive (use exFAT or FAT32) or a drive that needs more power than the phone's port provides (use a powered hub). Each physical drive is remembered separately, even identical ones; pick a new drive once in the app.
Teslas with the external speaker: Model 3 built from late 2019, all Model Y, Model S and X from 2021, and Cybertruck. If Toybox → Boombox exists on your screen, you're set.
The car plays up to 5 seconds for the lock chime and wants the file under 1 MB. The app trims and converts so you don't have to think about it.
Nowhere. No accounts, no analytics, no server of ours. Sounds stay on your phone (visible in Files under On My iPhone › Lock Chimes). Full details in the privacy policy.
Use sounds you have the right to use. The app ships with original chimes and makes it easy to record your own; it hosts no third-party clips. Sites with free sounds state their own terms, and many allow personal use in your own car.