@KD4IIW
To be able to program the AOR 8000 (AR8000) you will need the AOR CU8232 Programming Unit. See (click on) link below ...
Buy AOR AOR-CU8232 | Remote Control Computer Interface
How available these are today I'm not sure. Bear in mind the AOR 8000 is now around 24 years old.
There are some software programs that are freely available online; as well as a few you have to pay for - however, you will still need to buy the CU8232.
I have actually written my own software to program as well as do numerous other actions to the AOR 8000 but this will require you to open up the unit and fit a socket to the side of the receiver. I made a video on how I did this. Watch the video here ...