I can confirm this weekend when I pull my dash apart again...
I think it's the air leveling suspension. Was an add-on for limited trims. If you didn't have that option there would be no switch controller but all the wiring would be the same.
I see your air leveling plug (middle in my pic) and raise you two more unknown plugs...does anyone know what the left and right plugs are in my 2007 SR5?
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2008 SR5 4WD Black. Bilstein 5100, 5th gen coils/ rear springs. 255 80 17 AT for everyday use. Victory Sliders. Victory Front bumper with winch/ lightbar. headunit upgrade. Back up camera install. Expert at replacement rear hatches
All you need to go off road is to be willing to get some scrapes and dents along the way
Do any of these wires have a live 12v that I could use for a USB or another accessory?
Yes - most people tap the cigarette lighter wires for a usb connection in the blank switches in the center console
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2008 SR5 4WD Black. Bilstein 5100, 5th gen coils/ rear springs. 255 80 17 AT for everyday use. Victory Sliders. Victory Front bumper with winch/ lightbar. headunit upgrade. Back up camera install. Expert at replacement rear hatches
All you need to go off road is to be willing to get some scrapes and dents along the way