DIY – NAV System Conversion with working rear defrost

Originally Posted by radensb

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I am working on a way to use the base model A/C dial control module with the Navi AC amp module.

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In effect, this would be a plug-n-play translator that would allow the base AC controls to operate as normal and interface with the Navi AC system. Additionally, the AC state could be communicated to an app (or custom screen) to get visual feedback. In my case, I plan on integrating a tablet in conjunction with an aftermarket stereo. The tablet could run the AC state app and provide things like Mode, Temp, Fan speed, etc, similar to what the Navi screen displayed.
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