I found some nice LED tail light assemblies to replace my factory ones that had melted sockets and cracks. When I got them I noticed there was a sixth pin in the connector and two more lamps on the inside of each cluster closest to the center of the rear. I have running/stop lights (LEDs), turn indicators (filament style), and reverse lights (also filament). What are the other 2 lamps for? They are part of the red housing so I'm assuming maybe they must be either brake or tail lights or........?