I left the run + brake light assembly in place and changed the rear turn signals to multi function run, turn and brake units(yes, LED). Not tiny or spaceship looking (Rizoma Iride) but noticeably bright. And being LED they can piggyback on the run and brake light circuits with little increased current draw. I do believe having them function as run, turn and brake lights helps me be seen by those behind me.
I had used a (again LED) lighted tag plate surround on my previous Bonneville. Think it was dual function, run & brake light that blended in almost unnoticed if not on.