That's odd in the refresh they removed the wiring up there. Just an auto dim mirror is cake to wire. Just run power to a switched fused circuit and ground. There's a 3rd wire, usually green, that is for the reverse light circuit so it turns off dimming when in reverse, but it's not a requirement to be used. I've retrofitted several of my older vehicles with auto dim mirrors. The video thing is a whole different animal. You can buy rearviews with displays in them and you'd have to add aftermarket cameras if that's what you want.