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Boom box custom horn won’t stay selected


Feb 15, 2021
I made a custom mp3 horn for my car, It does work, when I select it it goes through and when I honk my horn it does play the horn and then the custom music. But anytime I put the car in park, or it goes into a sleep it automatically reverts back to fart instead of my custom sound. Anyone know how to fix this?


New Member
Sep 12, 2020
Hopewell, NJ
I came here to find a solution to the same problem, but no luck so far. Like yours, when I have a custom MP3 from USB selected, it will eventually revert back to the built-in fart sound instead of my custom sound. It doesn't seem to revert back every time. For example, if I stop multiple places during the day it seems to stay but after an overnight it changes to the fart. TBH: I'd prefer it revert back to no sound and just the normal horn.

Anyone have any idea on how to make the sound stick?

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