Project 9 – Install auxiliary light system with additional switch.

Purpose: My Harley model (2018 Low Rider) does not come with the auxiliary lightning system, which is very classical and beautiful, so I wanted to put in my DIY chopper-style auxiliary light system so my bike looks more classical.
How to do it:
- Preparation
  - A pair of 4.5-inch-chrome auxiliary light bulbs
  - A pair of Housing Bucket
  - A pair of 4.5-inch Auxiliary Lamp Visor Style Passing Lamp Trim Rings
  - Auxiliary chrome-plated on/off switch and switch housing kit
  - Wires and SAE connectors
- Performing:
  - Switch:
    - Remove two screws and lever bracket clamp.
    - The lower housing must be installed with the drain holes down.
    - Install the lower housing using two zinc-plated button-head screws from the kit.
    - Install the lightning switches in the mounting bracket.
    - Install the mounting bracket in the lower housing.
    - Route the wires through the holes in the lower housing.
    - Carefully compress the tab with a flat-bladed screwdriver and remove the hole plug from the housing cover (in same position with the position of the switch)
    - Install the housing cover with two button-head screws.
    - The wires would be lead down the front of the fuel tank.
    - Extend the length of the wires by connceting to a 2-meter wire, lead the wire under the fuel tank to the battery area by using a hard copper wire putting under the fuel tank first, than sitck another end the the pair of wires.
    - Cut the positive wire (1) of the SAE connector into two, and connect each end to each wire of the switch
    - (1) : Connecting the switch to the positive wire because the negative wire of the battery is connected to ground, whoch may contact to the negative port of the lightbulb, therefore connect the switch to the negative wire, in some case, may not cut off the signal fully (when switch status is off). Doing otherwise, the electricity could be cut off fully (when switch status is off).
  - Power source:
    - Detach seats (attch again after finish the project)
    - Disconnect battery cable for (negative first because if positive cable should contact ground with negative cable connected, the resulting sparks can cause a battery explosion).
    - Install the positive (red) lead of the SAE connector to the positive (+) battery post. Tighten the positive (+) terminal post bolt.
    - Attach the negative (black) lead of the SAE connector to the negative (-) battery post, tighten the negative (-) terminal post bolt.
  - Auxiliary light system
    - Create the tubular crossbar from iron pipe, then perform a chrome-plate process.
    - Assemble the crossbar on the chassis by the bolt of the stock headlight.
    - Assemble the auxiliary light bulbs into the housing buckets, the apply the trim rings on. Assemble the whole combination on both sides of the crossbar thereafter.
    - Lead the wires inside the tubular crossbar, and lead it out at the back side, then connect wires of the light bulbs together, from 4 wires (2 positive, 2 negative) to 2 wires (1 positive and 1 negative) and connect these 2 wires to the SAE connector thereafter.
    - Extend the length of the wires by connceting to a 2-meter wire, lead the wire under the fuel tank to the battery area by using a hard copper wire putting under the fuel tank first, than sitck another end the the pair of wires
    - Connect the SAE connectors from the battery (positive wire has been connected to the switch as aforementioned) and from the auxiliary light together.
Pictures