2012 is250 Base. I Ended up cutting the wires going to the sub and running them directly to my line level converter. This did not work. It would cut in and out and did not understand the ohm load. I found that the factory amp needed the ohm load from the factory sub.
2009 , 2010 Mark Levinson Wiring pin outs for line out converter
in Lexus IS250 / Lexus IS250C / Lexus IS350 / Lexus IS350C Club / Lexus IS-F / IS300h
Posted
2012 is250 Base. I Ended up cutting the wires going to the sub and running them directly to my line level converter. This did not work. It would cut in and out and did not understand the ohm load. I found that the factory amp needed the ohm load from the factory sub.