Third Bulb Housing in Euro Combination Lights?
 

Just received a set of brandy spanky new combination lights from Paragon Products. I've noted this before, but there is a 3rd bulb "housing" just outboard of the fogs. Not sure what the function of this smaller bulb, perhaps a position or parking light in some other country. Does anyone have a sure fire explanation of this open slot, perhaps a bulb part number and anything else that can enlighten me and the RL trust?

Pics would be helpful:

https://cimg7.ibsrv.net/gimg/rennlis...1aeb16f89d.jpg
https://cimg4.ibsrv.net/gimg/rennlis...bfcfe8ca2e.jpg

City lights. Maybe a 175 bulb? Can't remember.
You could either wire them to the parking lights, or just wire them so they're on when the engine is running as a pseudo daytime running light.

This is a slot for parking light on Euro cars. It takes R5W bulb if I remember correctly.

Boom. Thank you!

(TY as well Kurt)

Now to find a suitable socket.

To update this thread, Daniel Stern Lighting had the correct sockets and bulbs for this project:

85642001 Bosch/Hella BA9s city light bulb socket, metal friction-fit- $8.10 ea

3886X City light bulb 9mm metal base upgrade 85-lumen- $4.59 ea