69 Valiant Radio Help

Thanks for helping me with my earlier post about my Valiant's radio.

Once I removed it from the dash, I cut the wires as close as I could to the radio. I connected the red wire (power?) from the dash to the yellow power wire of my Kenwood MP522 radio harness, but the radio did not power on when I turned the car over. I tied the orange wire(illumination?) from the dash to the illumination wire of the harness and tied the ground wire of my radio to a metal part of the dash. I know the radio works because I removed it from the vehicle myself and it was fine.

Does anyone have an idea what I'm doing wrong here? Did I reverse the orange and red wires from the dash? Any replies are appreciated. Thanks for your time and thanks for your help with my earlier post.