So i'm looking at a used 2005 Mazda3 with a factory flip-up navigation system. I also want to install a Pioneer nav system. I probably won't use them both for navigation (factory system for nav, pioneer for radio/entertainment). Anyway, can I install them both? The wiring won't interfere with each other or anything?
I'm sorry but why do you want to put two navigation systems in your car? Edit: Oh.. I take it you already have a Pioneer nav system wich has a CD player built into it.