Changing turn signal bulb

I own a 2000 Dodge caravan. I know that you go under the wheel well and remove circular door to access the light socket but I can"t seem to locate it. Any advice would be appreciated.

What can’t you locate, the access door or the light socket? If you have found and removed the access door, the light socket will have wires going into it. Turn it counterclockwise to remove it from the light assembly and access the bulb.