Went home from the office today during lunch and did some more troubleshooting on the car. Once again I disconnected the black bulkhead connector to isolate the rear half of the car. Then I went to the front and removed the grill and disconnected the turn signal assembly via the connector right behind the headlights. Next I disconnected the left front fender side marker light using the spade lug terminals I installed back in October when I replaced that socket. Once everything was disconnected, I started the process of plugging everything back in. Replaced the fuse and it held, so that's a good thing. Plugged the rear bulkhead connector back in and the rear of the car lit up like a Christmas tree. Went to the front and reconnected the turn signal lamp. It worked perfect too. Reached over and reconnected the side marker light and POP! Found the culprit.
Now I have to figure out is it a bad socket or the wiring going to the socket.