Firstly thanks to elik745i as I used his interior light as the source to create this version.
The light holder replaces the cover plate in the top tailgate.

There are three designs:

• 16mm_NO_NC_16mm_on_off V1.0
• 16mm_NO_NC_12mm_on_off V1.0
• 16mm_NO_NC_only v1.1

Perception lighting LED rock light
White LED rock light - https://www.perceptionlighting.com.au/3-surface-mount-rock-light-500k-rok3
Amber LED rock light - https://www.perceptionlighting.com.au/3-surface-mount-rock-light-orange-amber-1650k-rok3
Dual colour (white/amber) LED rock light - https://www.perceptionlighting.com.au/dual-colour-led-rock-light-perception-lighting

Switch links
16mm bicolour self locking switch - https://www.aliexpress.com/item/1005006067948391.html?
16mm 3 position rotary switch - https://www.aliexpress.com/item/1005006384354512.html?
12mm & 16mm on/off self locking switch - https://www.aliexpress.com/item/1005006187833198.html?

16mm_NO_NC_16mm_on_off V1.0:
This is designed to use one:

• round 16mm push button on/off switch
• round 16mm push button bicolour switch that changes the light colour
• dual colour LED rock light from perception lighting

16mm_NO_NC_12mm_on_off V1.0
This is designed to use one:

• round 12mm push button on/off switch
• round 16mm push button bicolour switch that changes the light colour
• one dual colour LED rock light from perception lighting

16mm_NO_NC_only v1.1* - this may need trimming of the factory shroud to fit the light holder
This is designed to use one:

• round 16mm switch (push button or 3 position rotary)
• LED rock light from perception lighting

Additional hardware is required such as wiring, connectors etc.
May also suit other Rock lights and other switches etc.

• 16mm_NO_NC_only v1.0 may not work with 3 position rotary switch.