Before I replace my battery, is there anything I have to do first? on 2005 Chevrolet Malibu

When I take the battery out, cutting all power to the car, is there anything special I have to do first, like make sure the radio anti-theft code is unlocked, or something similar?

Asked by for the 2005 Chevrolet Malibu
if you can keep alive memory with pwr box that plugs into aldl connector
1 more answer
Disconnect the 'negative' first , connect 'negative' last.