Nav in a '04.
 

I have a '04 RX-8, and my car didn't come with nav. I was wondering if I can retrofit
a nav. Also are the '04 cars without nav pre-wired?

it has been done somewhere on this site. if i recall, it was a HUGE job. you'd be better off buying something aftermarket.

It is extremely expensive ($4000ish) to retrofit the nav. You are missing the entire wiring harness. One person has done it. Check out this thread.

https://www.rx8club.com/showthread.p...hlight=nav+DIY