So heres my problem.... i had a regular rockford fosgate radio with the sub in the back and the amp underneath the seat... when i first bought the car back in 08 i changed the speakers and amp and put in a double din and the chop shop clipped harnesses and wires and basically wrecked all my pre existing oem wiring (everything worked) but until i decided to install factory navigation unit we noticed its going to be more work then we bargained for... is there any info and how to's on factory nav install on a NON factory nav setup evo x?

 

https://www.evolutionm.net/forums/ev...-evo-10-a.html

Stickied right at the top of the subsection. That's what you're looking for correct?