Need some help on this one - I got the yellow and black mute wire relocated and grounded to system ground - but I cant find the light green wire. My unit was from a SCION and I dont see the light green - only left over wires from main harness are green (dark) red/white,orange,purple/white,and blue.
Any ideas?
update - I grounded the red/white and I now seem to have menu contorl and nvaigation input while in motion.