2000 Tundra head unit install

I can't find the correct wiring harness for the life of me. I have a 2000 Toyota Tundra, I'm fairly certain it has the factory amp as there looks to be one directly under the radio pocket in the dash. I've bought several harnesses and all have been close, but pins seem to be missing in places i need them. Can anyone point me in the right direction?

 

I have, which is the problem. Crutchfield, sonicelectronix, as well as my local audio shop have all pointed me toward a harness that doesn't fit.

 

First pic is of the factory harness, second is the harness that is supposed to work with it. It snaps into place, but pins are going to holes without connectors and the aftermarket radio it's all connected to will not power on

 

When I updated the audio on my 06 Tundra I got the deck itself from crutchfield and the speakers/connectors/deck assembly from bestbuy. May want to try them if you have one close. I want to say that I had to actually use butt connectors to match up the wires from the harness to the deck instead of the plugs but I may be thinking of my 4Runner or one of the boats I’ve done. Good luck!

 

Can't you always just cut off factory harness and wire new one to existing wires if you cannot find an adapter?