Welcome Funky. I'm also no 'lectric expert, but I know the "hold for turn" was updated about '90-'91. My '92 is push on, self cancel after x distance. If your first picture is of the rear signals, those small bulbs may not be drawing enough current to activate the flasher. When going to aftermarket or led lights, a ballast has to be used. Do a search in self help and tips, you'll find something.