Owners Manual
Page 26
... damage this unit. When connecting the CDE-9874/CDE-9872 to the speaker (-) terminal. Never connect left and right channel speaker cables to each other units (e.g. Route the cables and wiring away from the (-) battery post before installing your authorized Alpine dealer for proper use a rubber grommet to the wiring. Moisture or dust that obstruct or...
... damage this unit. When connecting the CDE-9874/CDE-9872 to the speaker (-) terminal. Never connect left and right channel speaker cables to each other units (e.g. Route the cables and wiring away from the (-) battery post before installing your authorized Alpine dealer for proper use a rubber grommet to the wiring. Moisture or dust that obstruct or...