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How do you install rear speakers in a holden astra?

To install rear speakers in a Holden Astra, you will need the following tools:

- Phillips head screwdriver

- Flat head screwdriver

- Wire strippers

- Crimping tool

- Speaker wire

- Speaker connectors

- 6.5-inch speakers (or the size that fits your vehicle)

Instructions:

1. Disconnect the negative battery terminal.

2. Remove the rear seat by pulling up on the front edge of the seat cushion and then lifting it out.

3. Remove the rear speaker covers by prying them off with a flat head screwdriver.

4. Disconnect the speaker wires from the old speakers.

5. Remove the old speakers by unscrewing them from the door panel.

6. Connect the new speakers to the speaker wires using the speaker connectors.

7. Mount the new speakers in the door panel and screw them in place.

8. Replace the speaker covers.

9. Reinstall the rear seat.

10. Reconnect the negative battery terminal.

Test the speakers to make sure they are working properly.