An advantage to taking the signal from the from speakers, as opposed to using the radio's output channel, is the signals will go through a Line Output Converter (LOC). This will provide gain fine tuning and volume control that are not available with the factory subwoofer feed.If using the KEY200.4 I believe I would want to tap the AMP Inputs for speaker level leads to run for a sub. If using the JBL or Infinity channels 7 & 8 can work as a sub output. Another option would be to “turn on the OEM sub” and get the signal from there. If I’m not using the Ford Amp is the any issue with that?
Sponsored
Last edited: