Goldy,
Funnily enough when I did my Police Advanced course for both motorcycle and car they expressly forbade us from ever using indicators or rear view mirrors so as to develop that sixth sense.
Oh no they didn't, what was I thinking?
You may decide to use Shamanic or Jedi like powers like Rex or you could look at this:
http://www.norbsa02.freeuk.com/goffyindicators.htm I don't think they look too bad at all on that Dominator.
I take that last sentence by Rex was some sort of veiled threat. Is there some history? What have you done to him?
We need answers.