1964 Valiant turn signals

I had the same issue, the stock setup reverses the current & ground to the single bulb in the panel. I tried putting diodes in the signal lines but that didn't work.
I had to unplug the TS wires from the round plug in the dash panel and wire 2 small bulbs stuffed into the 'socket' hole, as well as a seperate ground.
Sorry, I don't have any pics of that, and I just put the panel back in the car yesterday after paint!