CarPlay/Android Auto installed
I am new to this forum and a new Yaris iA owner.
I noticed there have not been any updates to this thread, please direct me to an alternative if available.
Today I finished up my Apple CarPlay/Android Auto install, I thought I would share some of the key points in hope that it could benefit others.
I initially started down this path because I was experiencing tuner(unable to tune and default to beginning of the band) and audio issues(erratic volume, balance, fade, and attenuation control) Through this and Mazda forums I narrowed down my issue to a faulty TAU (Tuner Amplifier Unit). Found it behind the glovebox on the right, retrieved numbers off of it and visited car-parts dot com and searched for 'radio' or 'amplifier' and purchased one for $110. Installation was challenging, very tight area with the HVAC assembly hindering access. After installation it fixed my audio issues. (You can send your TAU to: United Radio for free analysis and for fee repair)
What preceded above was installation of the AiO tweaks, which went smoothly. The audio issues started about a month after the tweaks were applied, so I uninstalled them with no audio improvement(My thought is that this issue plagued the last two previous owners and Toyota couldn't fix the issue... Mazda in a Toyota dealer!). Next I updated the firmware to Mazda (Version: 70.00.335C), still no luck with my audio issues... and my nav card was now invalid.
Found an eBay Mazda nav card for $35 and I have my nav back.
Purchased the AirPlay/Auto USB hub & cable kit (Kit# 0000-8F-Z34) from Werner Mazda (N.H.) on eBay (wernermazdaparts) for $146. Installation was fairly easy. First install Mazda firmware (V70.00.021B or higher) **WARNING- This will turn your Yaris iA into a Mazda** (i.e. boot graphics are now the Mazda badge with red themed UI, everything else is fine) Firmware here: https://my.hidrive.com/share/hsodpqja.l#$/Mazda_Firmware
Make sure you verify your download checksum before install.
Installation of the kit required removal of the touch screen/CMU (Linux computer) unit from the top of the dash (two trim pieces, two 10mm head bolts, and gently pop it up from the dash-two snap clips under the screen). Remove the old USB hub by drilling through the face of the unit to break off the retaining clips:
"Mazda CarPlay/Android Auto Install Hack" on YouTube.
Remove the glovebox and then feed the two new cables down from the touch screen/CMU (insure that the terminal plugs are correctly oriented... The old four terminal cable from the CMU to the USB hub is not used, I left it in place within the vehicle) to the USB hub. I bundled the extra cable in a 6-8" loop, secured it with four of the included tye wraps, and then covered it with foam (also provided) and stuffed it behind the CMU. Covered the cable run to the USB hub with foam as well.
I would recommend checking the correct operation of CarPlay or Auto before snapping the USB hub into the dash and bolting the touch screen/CMU back in.
Reassemble and enjoy!