Does anyone have a Helms manual for the 2004 TSX Navigation (specifically the wiring)? I need to know which colors are for the navigation bus (+ and -). I have looked everywhere and can not find anything. After moving my navigation from the trunk, to the glove compartment, now back to the trunk, I have lost touch screen and also the buttons under the screen no longer work. Any help would be GREATLY appreciated!

 

There are many buses.

Then there's a CAN bus, a Diagnostic Bus, an Audio bus... but I think you want the Display bus.

At the Nav unit, its in a 20-pin connector, and pin 20 is Red/Blue (-), Pin 10 is Red/White (+), and Pin 9 is Green/Black shield. Per diagram does not change color anywhere.