Since most the ones listed in this thread are "no longer available" on amazon, I decided to give these a try for $17. I'll post an update when I get a chance to install them:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Got them Saturday and installed them. No hyperflash at all and quite brighter than the stock flashers. From what I can tell these lights on the car never come on other than for turn signal use. Not sure why I thought the amber grille lights on our cars were parking lights as well as flashers?!?