Are Tacoma's wiring harness' the same between trim levels?

Hello all, I have a 2006 4x4 offroad base, access cab Tacoma. My truck has none of the extra bells and whistles, such as power windows, mirrors, heated seats, fog lights or intermediate wipers.

As I have been adding some mods and just regular work on the truck I have noticed a few things...

1. Behind the aux switches on the driver's left side, I have noticed wires connected to the back of a few but no switch installed, just a blank cover.
2. The fog light wiring harness is taped up behind the front bumper, waiting for fog lights to be plugged in.

I am curious if the wiring harness for 2006-2015 Tacoma's between all models are the same, SR5, TRD off road and TRD sport?
If this is the case then would it be possible to find a wrecked higher trim model and swap some parts? EX) door panels with power windows/ mirrors. Heated seats, ect.

I'm assuming that wiring connections are there but not being used...

If anyone knows anything I'd appreciate the extra info

 

Not all the same. Sometimes optioned parts are pre-wired, sometimes they are not.

 

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