Navigation Unit

How hard would it be to swap the radio unit for a Navigation unit in a 2003 Saab 9-5?

Is there a lot of wiring that needs to be done? Do I need a new antenna? Will I have to wire the navigation unit into my existing OnStar antenna?

Public Comments

1. I'm in the process of doing that to a Ford and found out there is a whole lot of mysterious wiring required that there is no information for.In the future I wouldn't attempt it again.It is probably better to install an aftermarket unit made for the purpose or stick with your handheld unit.