18IntroductionBefore using the main unit• Be very careful and pay full attention to safety whenoperating the audio controls while driving, otherwiseaccidents may occur. Also be sure to set volume so thatyou can still adequately hear sounds outside the vehicle.Improper use can contribute to a traffic accident.• Never continue to use the system if it is malfunctioning inany way. If smoke, abnormal noises or abnormal odorsare noticed, turn off the power immediately.Immediately turn off audio in such situations.• Exercise caution as to the temperature inside the vehicle.The temperature inside the vehicle can increase duringhot weather. Wait for the temperature inside the vehicle todrop before using the unit.Damage could result.• Do not disassemble or modify the main unit.The main unit has a precisely designed structure, soconsult your retailer in the event of any unsatisfactoryperformance.