Right near the end of the tacoma part before he went into the land cruiser tangent he showed ACC Customize and he just jumped past it because he did not know what it was, that would have been a nice one to know.
So I looked this up, because ..... Gen X. Acc customize turns on/off the ACC power (20min) in the old days with physical keys, this would be the first position as you turn the key, so you can listen to the radio without having the ignition on.