Can 2013 ES-350 Audio Firmware be updated?
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Can 2013 ES-350 Audio Firmware be updated?
We have had my wife's 2013 ES 350 for about 2 years now and have loved it. But when I got my 2015 ES-350, we both like the screen functions much much better on the 2015. Is there a way to flash the Audio System firmware on the 2013 with the 2015? The 2015 is so much more intuitive and easier to use than the 2013.
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