Do not pump the brakes. Just hold the brake pedal down firmly and let antilock work. A slight brake pedal pulsation might be felt or some noise noticed, but this is normal.
Antilock Brake System (ABS)
Braking in EmergenciesChevrolet Cobalt Service & Repair Manual. Radio, Replace
1.
Remove accessory trim panel and disconnect
electrical connectors.
2.
Remove mounting screws and pull radio
out.
3.
Disconnect radio electrical connectors
and remove radio.
...