2005 Honda Accord LX. How can we bypass battery draining radio problem but keep climate control working?

2005 Honda Accord LX. How can we bypass battery draining radio problem but keep climate control working?

Disconnect/remove the radio (?)

They should be on separate Fuses, but if it's the Memory that's the Draw, you will have to unplug it. The Memory is always connected to the Battery. It doesn't have anything to do with the HVAC system.