I need to wire the center overhead brake light on the topper topper already has the light and it is wired.
													
																	Topper third brake light wiring. 
									
	
		
	
																	Its what i do for a living. 
																	Tapping into your trailer wiring or a tail light definitely isnt the right way to wire a 3rd brake light wire. 
																	1 4inch diameter heat shrink tubing. 
																	The truck has a signal control box or whatever mounted above the spare i assume theres a simple plug and harness that can tap into that controller and then the rest is easy. 
															
													
									
	
		
	
																	Camper shell canopy with 3rd brake light installed led or incandescent 1 set male female wired connectors. 
																	5 00 if you need to purchase a 3rd brake light it could be 20 50 depending on how fancy you. 
																	Small diameter plastic wire loom optional two or three plastic tie raps or zap straps. 
																	Installing a leer truck cap on your vehicle adds security to the items stored in the bed as well as a distinct look that accents the body of the vehicle. 
															
													
									
	
		
	
																	Those get wired into your chmsl wire. 
																	I install toppers truck accessories crap all day.