I Just installed an iSimple ISHD651 in my 2004 TL with Navi. The install went smoothly, as as directed.

When I fired it up, the screen what you see in the pic below. All dip switches are off, I plugged everything in following the correct order. I have reset, switched back and forth. I did notice that it does not let me switch between Sat 1 and Sat 2. I read about reversing 2 wires on the harness. Does that sound like it could be my issue? I am leaving on a road trip Friday and I would really like to have it working.

Thank you.

 

I had to do a hard reset of my isimple to get it to recognize it. The directions are online. You have turned the tune knob in order to select ipod or aux as the source correct?