We used to use a pair of the front signals and put them on the rear stems, then get red lenses and boom, extra lights back there. Some of the rear stems do need the wiring hole enlarged.
My 78 Goldwing has a rack and vetter bags on it, when I removed the trunk, I added drag specialties mini's on both sides of the license plate, they work with running and brake lights and I still have amber turn signals.
Do you have a type of electric component to give your extra brake lights more power while the tail/running lights are on,or do the taillight section of the bulbs temporarily turn-off inside the turn sigs while the signals are flashing ?
Nope, on my GL the turn signals are standard yellow and separated from the added brake and running lights, On the 750's we did the bright part of the bulb was wired to the turn signal wire and the running lights were just hooked to the running light wire. I suppose that's hard on the bulbs but we didn't think too much about it.
I also tried the early type of LED bulbs with a lot of disappointment, I finally bought LED taillights for my 40 Chevrolet, even with bright bulbs the turn signals and brake lights were difficult to see during the daytime.
