You should be able to do this if you're a little creative. The corner lights as they now stand use a single-filament bulb with a twist-in holder. What you'll need to do, I think, is either to drill out the back of the light and put another single-filament holder in, or procure a holder for a two-filament bulb, like the ones used in the front parking lights. I don't know whether the corner lights have enough depth to hold a conventional two-filament bulb. Be careful not to put too big a bulb too close to the plastic or it will melt. If you use a two filament bulb, make sure that you wire it correctly - the higher-wattage filament, which is the shorter of the two, is used for the signal. The taller, low wattage filament is for the parking/marker lights. You might be better off finding another set of the original style bulb holders that take the little push-in bulbs, because they're smaller and might be easier to fit. This might be an easy and cheap junkyard item. Wire the running lights to the same circuit as the current parking lights, and they should work fine. The wiring is the simple part. Getting the bulbs to fit cleanly in the light without making a mess or breaking it will be your challenge.