Head unit !!!

theboydiddy

Does anybody knows how to:
Update the jvc kw-av70bt unit ?
Have apps work with the jvc kw-av70b unit ?
I have this unit for quite sometime now, but never had the curiosity to use these features until now. The manual says open an app while iPad iPod iPhone is connected than select the "app" icon on the unit and that's it. However it doesn't work like that. I read online some where someone even got Netflix to work on the unit just by plugging the phone and clicking the "app" feature of the unit. Not working for me.
The website doesn't really answer my questions either, which is why I was hoping someone here would have it and know how to work it much better than I do and be able to teach me me how to as well.

Thank you in advance.