Installing Aftermarket Sound System on Jeep Cherokee XJ luxevolume.com

The amplifier requires a dedicated power wire (4-gauge or 8-gauge, depending on your system’s draw) run directly from the positive battery terminal, through a fuse holder within 12 inches of the battery, then through a firewall grommet. Most XJ owners route the power wire through the grommet behind the oil filter on the passenger side or through the driver-side grommet used by the factory wiring harness . From there, run the cable along the passenger-side kick panel, under the door sill trim, and to the rear of the vehicle. The remote turn-on wire (typically blue or blue/white) connects from the head unit to the amplifier, telling the amp to power up when the radio turns on .