User manual JVC KD-R900

[. . . ] Be sure to ground this unit to the car's chassis again after installation. [. . . ] Connect speakers with a maximum power of more than 50 W (impedance of 4 to 8 ). DO NOT connect the speaker leads of the power cord to the car battery; otherwise, the unit will be seriously damaged. BEFORE connecting the speaker leads of the power cord to the speakers, check the speaker wiring in your car. If you have any questions or require information regarding installation kits, consult your JVC IN-CAR ENTERTAINMENT dealer or a company supplying kits. ­ Refer to the pin array shown above to confirm the connectors on the vehicle and this unit are the same. When the connector on the vehicle side is NOT a ISO terminal (different terminal as this unit) / Lorsque le connecteur du côté véhicule N'est PAS une prise ISO (terminal différent que cet appareil) The connector of the vehicle and this unit having DIFFERENT pin array. Consult your JVC IN-CAR ENTERTAINMENT dealer or a company supplying kits for details about connection. ] Is the rear ground terminal connected to the car's chassis using shorter and thicker cords? [. . . ] Consult your JVC IN-CAR ENTERTAINMENT dealer or a company supplying kits for details about connection. [. . . ]