Any way to take code from new Chromecast Audio and install on Nexus Q

Is there any way to take the code from the new Chromecast audio and implement it into the Nexus Q?

Take just 1min out of you time and help me if possible :)

So I know these questions have been probably asked and answered a million times already, but honestly, I haven't been able to find answers exactly for my questions.
I will try to keep this as sort as possible, all I ask is to either point me somewhere or answer with a simple Yes/No. Of course longer responses are welcome as well :p
My info:
*SM-N910F *trlte *Firmware CSC code- TTR *Bootloader/PDA/Baseband- N910FXXU1COH4 *5.1.1 *LMY47X.N910FXXU1COH4 *If more is needed just tell me.
So here we go:
1)From what I understand, for installing a custom ROM, TWRP is the first thing I should install. Correct?
2)Which is the latest Odin version (or which version should I use) to install TWRP?
3)Is it possible to install any STOCK rom from SAMmobile or only the ones specific for my country?
4)After installing TWRP and making a backup, which application should I use to root my device and which one to make an EFS backup?
Thats all, thanks a lot in advance everyone :)

Not Able to Take Nandroid BackUp in TWRP (V2.8.7)

Hi

When i try to take backup in TWRP it says E:Unable to mount storage
Then BackUp Failed

Pls Help need to take a Backup


Thanks & Regards
Tharun Gowd :(