hp indigo 5000 lamp wire connection

Hello guys i just change ITM lamp i dont know how the wiring goes
front red and black connected to the end of lamps
question how they should be connected in the back machin side ?
1-is red front end lamp should go with red wire in back end lamp
2- is red front end go with black end in back side
3- is black wire front end lamp go with black wire end lamp in the back
anay help please

 

Just swap them and try it.