Caliber RDD570BT Instruction Manual

Also see for RDD570BT: Quick start guide

Device connections33Notesnegative grounding. Before installing this unit to a recreational vehicle,a bus, or a truck, make sure the battery voltage is appropriate for thisunit to be used, otherwise, install a transformer by professional toconvert the output voltage to 12V. To avoid short circuit in the electrical system, ensure that the negativebattery cable is disconnected before installation. To prevent short circuit in the wiring and damaging to this unit, secureall wirings with cable clamp or adhesive tape. Route the wirings in asecured, out of heating place without touching any moving parts suchas gear shift, handbrake, and seat rails to prevent the wiring insulationbeing melted / wore off. Never pass the yellow power cord through the installation hole into theengine compartment and connect to the car battery. Otherwise, a highpossibility of serious short circuit to the electrical system may beoccurred. Replacing a new fuse with 10A rating when the old one is broken, usingno fuse or fuse with improper rating may cause damage to this unit oreven fires. If a proper fuse is installed and electrical problems stilloccur, please contact with any professional car shops for inquiry. D connect other equipments with the car battery to avoid batteryoverheating. Please make sure all the wiring connections & the cables of thespeakers are well-insulated. Otherwise, this unit may be damaged byshort circuit. If there is no ACC available，Please connect ACC lead to the powersupply with a switch. If an external power amplifier is connected, please don't connectP.CONT lead to the power lead of the external power amplifier,otherwise, electric spark or other damage may be resulted. Never ground the speaker output to prevent the damage to the built-inpower amplifier. The minimum rating of the speakers connected to this unit is 50W with4 to 8Ω impedance.of connectionO NOTThis unit is designed to be used in a vehicle with a 12-volt battery and