Aputoxz Car Horn Splitter Adapter Wiring Harness, 1-to-2 Converter Plug-and-Play, Compatible with Toyota/for Lexus Single to Dual Horn Upgrade, Y-Type Connector. Publisher: Aputoxz. Dual Horn Upgrade: Specifically designed to convert factory single-tone horns into a dual-tone horn system, this horn splitter adapter adds a second low-tone horn, improving sound clarity and loudness.
