diff --git a/README.md b/README.md
index 7d266c8..22c7a66 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,8 @@ A PoC that the USB port is an attack surface for a Mazda's infotainment system
 # Instructions
 - Prepare a USB flash drive that is FAT 32
 - Copy this repo to the root of your USB flash drive
+- Turn on your car (accessory mode) then insert the flash drive
+- Wait for like seconds and check your infotainment system