brake light integrated turn signals

Hey everyone I am trying to find out how I can integrate my turn signals into the brake light on my '94 Yamaha FZR600. The stock brake light has 2 dual filament bulbs so it should be possible. I would like to keep the running lights/brake lights as they are but also have the turn signals integrated into them. Let me know if you have any suggestions on how I can accomplish this. I read that a trailer light converter can be used but this causes the blinkers to flash way too fast when the brakes and the turn signals are applied at the same time. Brake Light Diagram Thanks, Garret

Are the dual filament bulbs are 21/3W or similar - ie, they are not BOTH high power filaments (eg 21W)? (If so, I don't see how being dual filament makes it easier since flash & stop use high-power bulbs, not low power park lights etc.)

i did this to my 05 zzr. if you go get a hopkins tail light converter "48845" and wire it up so the inputs are all to the right stock wires and the outs are to the left and right tail light bulbs it will do what you want. and the adapter is like 10-15$