That should be easy to solve running a wire from the headlight (or other (+) live when running) to the bulb and a couple 5A Diode's (Diode allow flow of the current in just one direction, from the black side to the side mark with the grey line) per bulb... one diode for the headlight (+) wire, one for the blinkers (+) wire... then join those 2 wires together and to the bulb. I'll need to look closer to the circuit in the R3 but I am still on the break-in service for the bike, don't want to touch that much yet. Maybe an easy way to do this without splicing the wires, just with connectors.