Rear OEM Aux 15 amp only?

[rptls]

I am adding some lights to the rear and want to use the 5amp aux switch. Based on the card that came in the bags with the pigtails, the rear only works with the 15amp switch. Am I misunderstanding something here? Seems like a waste to use the 15 amp switch for a 2 amp light. I want to use the 15 amp down the line for a larger light bar. Pic for reference

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[Andrace]

In a thread for SPV light installs for the ARB Steel rear bumper, there are a few who have swapped the wire that powers the rear accessory. I did the same so that the 5A wire is powering the rear. De-pinning the harness was tricky, and I ended up splicing in a Toyota pigtail connector.