12 Volt in- line noise filter. Rated up to 12 amps.
In-Line Noise Filter
Eliminate the engine whine noise from coming through your speakers with this simple item.
Comes with 4 holes for attachment to a flat surface.
- Blue wire is clean power (clean +)(or positive to the filtered device) and should connect to the radio / intercom red wire
- Black wire is ground (-) and should connect to the battery ground and the radio / intercom black ground wires
- Red wire is incoming hot (+ to the battery) and should be connected to the positive battery or positive terminal from the source power.
12 volt 12 Amp noise filter