What fuse silences the back up beeper

Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. The vehicle does not come from the factory with a "back up beeper". Sounds like an add on device by a body up fitter; has someone modified the vehicle? A visual inspection under the dash and where the beeper is would be a next step.. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!