MS8 w/ ARC amps - Set Up Questions

[Chrisw21 10+ year member]

Getting ready to set up the system and now I'm getting down to the details. Now a few issues have popped up. The amps are ARC FD4150 for front/rear and FD600.1 for the sub.

1. Aux Input - I was going to use the input on the MS8 to listen to Pandora, Grooveshark, etc. thru my phone, but then I remembered reading that the MS8 doesn't process the aux input the same as the HU input. Is this true? I may just buy the aux input cable for my HU anyways so I can control volume from there rather than the MS8 remote.
   
2. Crossover Settings - Do I let the MS8 handle the crossover points or use the adjustments on the amps? If I use the MS8, what do I set the amps at? If I use the amp crossovers, do I set the MS8 to "Full" for all settings?
   
3. Bass Boost Knob - I want to have the bass boost knob hooked up even if I don't use it much. The recording levels between some types of music and some older recordings just requires it in my opinion. So if I use the remote knob, where do I set the bass boost adjustment the amp at? 0dB??
   

Thanks for your help guys!!

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