Yeh i had been looking the net for info on it with no luck, as a mechanic i used my contacts to dodge the Mazda stuff around and found this, i have used it on my 2003 SP20 tonight and it worked, so good luck to other ppl who need there radios unlocked.
Thanks for the info, Blue! I had a feeling there must be a better way than the dealer explained; he would take out the radio, send it to the importer, where it would take three weeks or more (with me driving around with a hole in the dashboard), and it would be reset for a fee. Better than having to buy a new one, but ....
Mine is a Mazda Premacy from 2001/2002. Using your routine did not give the desired result, but I think this may be due to a slightly different procedure to initially enter the code. My manual states that the AUDIO and AUTO/M keys must be pressed simultaneously, after which -- -- -- -- appears to enter the code. These buttons are to the right of the display, with AUDIO above AUTO/M. Preset 6 is not mentioned in my manual. By the way, my radio must be an older model: it has a tape cassette player instead of CD.
Question 1: Which keys must be used, according to your manual, to startup of the setting according to your manual?
Question 2: In your procedure, after your Step one, does "-- -- -- --" pop up to put in the number 4989?
Blue_SP20 Thanks so much for posting these instructions! I was able to unlock the stereo in my wife's 2004 UK Mazda 6 without having to pay our local dealer. It's funny, cos they were talking about having to hook up some special equipment and call Mazda to get it re-activated.