Attention! Make sure you know the decoding code for your radio.
1. Disconnect the battery from ground.
2. Remove the middle panel.
3. Unscrew the screws of the radio.
4. Move the radio towards you.
[The article was copied from here: nissanbook]
5. Disconnect the antenna connector and plug.
6. The radio fuse is located inside the bayonet connector.
7. Install the radio in reverse order.