DIY Idea: Car Blind Spot Signal

Please note, this is still an idea.

Why?

Ever saw some car with blindspot signal placed in their side mirrors? I did and I want it installed in my car. It really help us driving especially on busy traffic with motorcycles around.

How?

Use reverse/ parking signal with LED display like I use it in my previous car as proximity sensor. Then detach one of the LED display and glue it behind the side mirrors. Easy, eh?