What is needed is someone to test something like this
http://car-solutions.com/en/car-most...-bos-mi009.php
There is an HMI multiplexer device that is known to work with 5th gen camaros and it does have audio-out RCA connectors, but it's unclear if it works wtih the 6th gen and unclear if those connectors capture all audio heading towards the bose amp or only a subset.