Couple of door questions

[TIM86]

First question: Im having some issues closing my drivers door. If I dont give it a good slam it will only catch part of the way and allows for the door to open partially. I have adjust the post multiple times and it adjusts for a little then goes right back to what it was doing. Is it time for a new catch or post?

Second: I wanted to change the light switch in the door the turns the cab light on when the door is open (old one was broke). Took the old one out and on of the wires fell in the hole. Do I need to pull the fender in order to get this wire out?

Thanks