For select 2005-2007 Toyota JBL and JBL Synthesis amplified audio system Adjustable input gain USB update interface compatible Wiring Harness for Select 2003-2008 Toyota Vehicles with JBL/JBL Synthesis Audio Systems
I was pulling my hair out trying to replace the factory head unit in my 2003 Toyota 4Runner that came with the factory JBL audio system (amp and sub in trunk). I was minutes away from just driving my truck off a cliff out of frustration with how many different poorly documented factory wiring options there were for one freaking make/model of car. This was my 4th wiring harness I purchased and the only one that worked. It works perfe..