Across
- 1. – Adjusts left/right sound
- 3. – Dashboard audio control
- 4. – Controls input signal strength
- 6. – Two-channel sound
- 9. – Adjusts front/back balance
- 12. – Boosts sound power
- 14. – Sound quality measure
- 18. – Wired input option
- 19. – Measures power output
- 21. – Sound intensity unit
- 22. – Splits audio frequencies
- 23. – Single-channel sound
- 24. – Unwanted sound interference
Down
- 2. – Receives radio signals
- 5. – Electrical resistance in ohms
- 7. – Adjusts sound frequencies
- 8. – Wires connecting components
- 10. – Main control unit
- 11. – Produce sound
- 13. – Deep bass speaker
- 15. – Adjusting radio frequency
- 16. – Wireless connection
- 17. – Enhances weak signals
- 20. – High-frequency speaker
- 21. – Mounting hardware for head unit