The reason your display is dim on one side is simply putting it back together usually finishes off the display bulbs(they were ready to burn out).
If its the single disc player you got three behind the display.
All the bulbs are soldered in so you will need to desolder them and soldernew ones, after i upgraded mine to the whole monsoon setup i replaced the burned bulbs in the single disc to make a writeup, I will post back when i can get all the pictures together and a writeup.
The theftlock will not be affected, as for the pulled wires i pulled one and then realized you have to open the cover first and unplug the front panel before removing it, fixed it with no issues at all.