Well, after a lot of research, the bulb for the blinkers is 7506.
They do make a 7056A (amber) bulb, and it is a special order item.
I found them on www.litebulbs.com
It will take some time to get them in, so in the meantime, I ordered two clear bulbs that they are dyeing amber for me.
I also found this bulb made by a company by Polarg, that is silver when off, and flashes amber when lit. The only problem is that it is a 27 watt bulb, and the standard bulb is 20 watts, so I don't know if that would be a problem. I know the idiot light will illuminate if you are using a bulb that is the wrong wattage. The other problem is that the bulb is very expensive: