Cruise control and overhead display
 

Hey guys I got to issues I was hoping to get advice on first my cruise just up and stopped working what could be the problem I dont know jack about cruise control some guys are saying that the switch underneath the master cylinder is the most likely cause of the failure is this my most likely issue or could there be another problem? Second my over head display works then doesn't work it's an intermittent issue when it doesn't work moving the door around for the sun glass compartment in front of the display gets it working so I'm thinking lose wire could this be my most likely issue or could there be another issue I will say when its working it works normal nothing seems to be wrong other than the fact that oftentimes I have the issue of it not coming on. Truck is an 03 6.0 powerstroke thanks in advance