The A-frames come with a top close switch it is located inside on the front driver side just behind the curtains next to the lift spring it is to shut down power to the top lights and fan when closed. It is lightweight and gets broken easily.
This is the A-frame site if that is not what you have you might post you message on another forum.
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2014 A194HW
2004 Toyota 4runner V8 4WD
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