Jensen A220 Amp Manual -

Attach the ground wire to a clean, unpainted section of the vehicle's chassis. Keep this wire as short as possible—ideally under 36 inches.

Connect directly to the positive battery terminal. A fuse must be installed on this wire within 18 inches of the battery to protect the vehicle's electrical system. Jensen A220 Amp Manual

Connect this to the head unit’s amplifier turn-on lead or power antenna output to ensure the amp powers on with the radio. Attach the ground wire to a clean, unpainted

Capable of outputting 250 Watts into a 4-ohm load. Jensen A220 Amp Manual

Utilizes MOSFET technology for efficient power delivery. Installation & Wiring Guide

Stable down to 2 ohms in stereo mode ; however, a minimum of 4 ohms is recommended when bridged to prevent damage.