SOLUTION - RX8 Radio Reset Code
 

For anyone that has had problems with getting either the "code" or "Err" messages on the radio.
I tried looking everywhere for this and found either people denying this happens or, take it back to the dealer. Well, I am not one to fork out money when all you need is a 4 digit code!!

So, if you get "Code", then press Auto-M/Tune and 6 together, and enter the set code, then press Auto-M and 6 together. If you dont know this, enter a wrong one three times and you get "Err".

Once you have "Err", press these buttons in order. 6, AM, Auto-M/Tune, Seek+

You then get a code prompt again. Enter 3511 and press and hold Auto-M, whilst doing that press 6 . You should get "GOOD", and it will fire up.

It took me a while to find a code that worked. There may be others that work for different models/years.
I think 4989 works for Mazda6 and 1515 for MX-5, try those if no luck with the above.
And please post below if you find another that does work!!
So far the codes I have found for Mazda are:
4989, 1414, 3511, 5989, 3211, 2312, 0532, 5011, 0000
I hope this helps and saves some people time and money

Nice work!

Damn son, like a boss!

Thanks for posting that about the codes been all over Cyprus no one could help, followed your post to a tee and yes all up and running thanks so much

(code 3511)

Brilliant post. Tried 3511 and worked first time. Thanks

Tried 3511 and it doesn't work. When you hold auto-m and press 6, do you have to hold them both for a certain time. No message comes up, it just goes straight back to Err.

Worked like a charm :D
I fitted a new battery, forgot I had set a code (I actually remembered my code after I'd locked-out), but for some reason it wouldn't take the correct code after [6, AM, Auto-M/Tune, Seek+]
Tried 3511 and Boom !
Thank you so much.

Ok ...after almost 2 hrs of dicking around ...I finally got this to work .
Why it took so long is that the instructions are not precise enough plus one of them was wrong for my RHD car .

Firstly ...you don't press Auto-M/tune and 6 together .... You press auto-m/tune holding it down ,then 6 within one second (holding it down) then hold both of them down till you get ---- come up . You then enter any number three times per above.
When you have err flashing :
You enter
6, AM, Auto-M/Tune, Scan+ .................................NOT 6, AM, Auto-M/Tune, Seek+
then 3511
then You press auto-m/tune holding it down ,then 6 within one second (holding it down) then hold both of them down till you get 'good' come up

So above did work kinda , but better instructions could have saved me a heap of time and aggravation !

In my rx8 With err on display this sequence doesnt work. Anyone knows why ? Rx8 from 22 Dec 2007 231hm