I need someone to help me, I would appreciate it so much, I have a lexus IS200 se year 2000, I have bought a jvc stereo which came with a wiring harnes, I then ordered a fascia that comes with a harness that would go into the harness that came with the stereo, but it doesn't fit it the the plug that was in the standard radio, i don't really want to bypass the amp either, is there anything I can do here ?