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Radio Change For My NA8 to NB Radio

Posted: Thu Apr 20, 2017 11:47 am
by myredmx5
Can anyone tell me which MX-5 model the picture below comes from and is it a CD Stacker model.
MX-5 NB Radio CD Player 001.jpg
Where can I buy the wiring converter to put this in my NA8
MX-5 NB Radio CD Player 002.jpg

Re: Radio Change For My NA8 to NB Radio

Posted: Fri Apr 21, 2017 12:48 pm
by 93_Clubman
This should help: https://www.miata.net/garage/nbaudio/index.html
More here: https://www.miata.net/garage/garageaudio.html
Believe converters are available on ebay etc.

Re: Radio Change For My NA8 to NB Radio

Posted: Fri Apr 21, 2017 3:18 pm
by Danny
I recently fitted this unit into my '99 Pajero. I bought the generic Mazda adapter from an auto shop. it only requires one of the two plugs on the back of the unit, the big one.

I couldn't get the light dimmer to work. The unit's light just went on of off with the main light switch. I then learnt the dimming function works on a three wire system. Something to do with + and - 12v pulse feed which I don't understand. I located the relevant wire on the main harness and bought a second adapter to cannibalize a connector from. The generic adapters don't have provision for that 3rd wire.

Before you start get the radio wiring diagrams for the car, the unit and where you need to tap into the "pulse" feed.

Re: Radio Change For My NA8 to NB Radio

Posted: Fri Apr 21, 2017 4:04 pm
by myredmx5
Thanks for your input so far guys.

Does anyone know which MX-5 this stereo comes from? It has a 6 stacker CD symbol on the top right hand side.

Re: Radio Change For My NA8 to NB Radio

Posted: Fri Apr 21, 2017 4:07 pm
by hks_kansei
Used in the NB8B (2000 onwards)

But, it was a fairly standard Mazda unit, also used in the tribute, 626, and probably a few other models.

Plugs for the unit can be purchased from autobarn etc, which go from unit to ISO plug.
Then you can get an ISO to NA mx5 adapter if they have one, or alternatively cut the iso plugs off and wire it direct to the loom in the car.

Re: Radio Change For My NA8 to NB Radio

Posted: Sat Apr 22, 2017 4:45 pm
by myredmx5
hks_kansei wrote:Used in the NB8B (2000 onwards)

But, it was a fairly standard Mazda unit, also used in the tribute, 626, and probably a few other models.

Plugs for the unit can be purchased from autobarn etc, which go from unit to ISO plug.
Then you can get an ISO to NA mx5 adapter if they have one, or alternatively cut the iso plugs off and wire it direct to the loom in the car.
Very helpful post, many thanks.