https://www.facebook.com/360degreecam/posts/1909610425919206 Blind Spot Monitor Side Assist System for Nissan Qashqai 2015-2017 and BMW F30. No Drilling required. Features BLIS (Blind Spot Information System) is designed with latest microwave technology to warn driver of other vehicle or motorcycle approaching in the next lane, which is possibly in blind spot from side mirror. System is activated automatically when vehicle speed is more than 20Km/h, LED indicator turns on if sensor detects another vehicle or motorcycle in the next lane coming closer. If you switch on turn signal at the same side when object is detected, LED indicator will flash, and you will also hear 3 beeps. If you switch on emergency button (both sides turn signals turn on), LED indicator will not flash. When vehicle speed is lower than 20Km/h, system will stop work. Sms or whatsapp me at 96952338 for pricing with installation.