Installed for about two months after purchasing new, but no longer needed as I've changed vehicles. This kit installs into a spare factory switch and allows you to turn the function ON/OFF. Compatible vehicles are as follows: Corolla MZEA17/ZWE215・219 R4.10〜 Corolla Sport MZEA12H/ZWE219H R4.10〜 Corolla Touring MZEA17W/ ZWE215W・219W R4.10〜 ・Vehicles equipped with 8-inch Display Audio (compatible with Connected Navigation) ・Vehicles equipped with 10.5-inch Display Audio Plus (compatible with Connected Navigation)