OK guys heres the situation 2003 Chevy 2500HD 4X4 Eclipse AVN5500 useing the axxess GMRC-01 where would the best place be to tap into the VSS wire for the nav function and what color is it Ive looked at alldatadiy and Im really not understanding the diagram they have also Ive hooked up the Illumination both ways and it isnt working now the headunit is out of my car and the illumination did work in ther tho it was hooked up some wierd way that looked like it tapped into the alarm