Anyone in Sound Studio and Video editing?

Seen now the second Time a Lorry which works for the Council with :" Stay Clear. Vehicle is turning left!"
As i understand wots the Idea behind it i wanna see & hear how Boris Johnson would have it if every Vehicle in London would have such a Device. Sure it would catch Cyclists attention. But i wouldnt like to leave near a Road then.

vtstore.co.uk/audible-and-visual-warning
vtstore.co.uk/reversing-alarms

Think you fit the Cable on the Minus from Indicator Switch to Relais. You need 2 of it,so one warns Cyclists when turning Left and the other for turning Right. (If you find it as good Idea)
vtstore.co.uk/reversing-ala … om-message
vtstore.co.uk/reversing-ala … om-message

Looks to be a good idea. Can we please also have one linked to traffic lights? “this light is RED”. And maybe also “red means stop”.