Anthem AVM-70 8K and Apple 4K Start Up Issue

If anyone has experience with the Anthem AVM-70 8k, I am trying to have it automatically turn on when I turn on my Apple TV. It will turn off automatically with my Apple TV, but will not turn on (the TV connected through the Anthem does turn on). I have the CEC turned on and, like I mentioned, the Anthem turns off when I turn off the Apple TV so some signal is being processed. If there is a better place to submit this question/issue, please let me know. FYI - I reached out to Anthem and they said turn on/off CEC and unplug / plug back in my HDMI cables (and keep my versions up to date, which I do, of course). Thanks!