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MazdaSpoof - A DIY Aux Input

I promised documentation so here it is: http://nikosapi.org/wiki/index.php/Mazda_Entertainment_System

There you'll find everything you need to know about the bus protocol and more importantly schematics and source code for a tape deck emulator (with iPod integration). Here's a direct link to the emulator: http://nikosapi.org/wiki/index.php/MazdaSpoof_-_A_Tape_Deck_Emulator

If you're comfortable with a soldering iron you can assemble and install the circuitry in an afternoon. If you don't have easy access to all the parts, I could probably sell some kits or individual parts (like pre-programmed microcontrollers).

I hope this inspires some of you to build your own aux input!
 
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2013 CX-5 6MT
Nice write up!
I think I'll try to do this mod in the next couple of weeks.
I have a little 8-bit processor (I think it might be an AVR as well) evaluation kit laying around somewhere so I'll probably port the code to that chip.
I'll probably just do the basic AUX input.

Have you ran into any problems with this design? Or is there anything that doesn't work the way it should?
 
Nice write up!
I think I'll try to do this mod in the next couple of weeks.
I have a little 8-bit processor (I think it might be an AVR as well) evaluation kit laying around somewhere so I'll probably port the code to that chip.
I'll probably just do the basic AUX input.

Have you ran into any problems with this design? Or is there anything that doesn't work the way it should?
I've been using for a few weeks now and have yet to have a single glitch with the basic audio input. The iPod support could use a bit more work but I use it everyday as well (Eg. sometimes I'll have to disconnect and reconnect the ipod or else it doesn't respond to the commands sent by the radio but this may be a bug in the iPod firmware).

If you do port the code to a new chip please share your changes and I'll post them on the wiki. Happy hacking!
 
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