So it is correct that I need to update the harness for the headlights.
What I don't understand is why are they adding a fuse in and not using the fuse that is part of the original harness? My thinking is to purchase the relays and the plugs and solder them in just to keep things simpler.
Here is my understanding/take on the Painless # 30815 or 30814 Harness Kits based on reading their Instructions
Not necessary to upgrade the Old/Original Front Lamp Harness
as it is just giving the Signal from the Dash Light Switch
The Painless Harness is separate from the Forward Lamp Harness and the Engine Harness
Figure where you want to put the Relays & Fuse so that the Wires will reach all 2 or 4 HL
Then put the 1 Red Wire for a E Power Source to Battery + Post ....
Then find a place to put the 1 Black Wire for Ground Source
Unplug the 2 or 4 Old Female Headlight Plugs that plug into the Back of the HL Bulbs
plugin the 2 or 4 New Female Painless Harness HL Plugs to the Back of the HL Bulbs
Plugin 1 of the Old/Original high/low beam Female Connectors from the Headlight Bulbs/Front Lamp Harness
to the New Painless Harness Male Connector that looks like a Female but is a Male
that will give you the connection for the signal from the Dash Light Switch when you Turn on the Lights
Hope I have explained it clear enough