Oh, I like that idea Dave...can you get magnetic ones? Or stand alone ones?
I do a lot of comercial stuff very early in the morning and am often parked in the high street (6am-8am in the morning) with hazzard lights blinking...
Ian
Yeah you can get magnetic mounting one's, im sure there quite cheap on ebay. Tractors normally use them, they plug into the cigarette lighter.
DAve