This is a discussion on Sub install problem within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; Originally Posted by Houstonwrx I am using the factory head unit, I know I know; I bought a device from ...
theres no need to run your rca/power wires on opposite sides of the car for a sub. the low pass filter will cross it over low enough and you'll never hear it. as far as your problem goes its from the line out converter your using. like the above post says, one of your channels are wired out of phase. just go back and check your wire connections at the line out converter. you have 2 wires backwards
2006 OBP WRX