I installed my Class IV hitch, and wiring connector on my SE KC 4x4, obviously I don't have the Tow Package. I have working brake lights and turn signals on the boat, but no running lights. A previous thread mentioned relays behind the battery were needed, parts number 25230-79945 and 25230-79964. Do I need both of these? One is $ 17 and one is $ 30. Not a big deal on price, but I would like to know which slots they go in, and if both are needed before I order them from the dealer, or the internet. A photo of the relay box would be a real help. Thanks to all in advance who can help me.