Why do you need to plug it in the car's USB, unless for charging? I tried doing this with the E17, too much work involved. Thus my current setup: Note 4 with wireless charging--> Poweramp --> HiFimeDIY Sabre Android DAC.

  Yep, it's perfectly set up.  Put it in the dock...plug in the DAC...Tasker will autoplay my music.

  That's how mine is set up in my car. Galaxy S4 on a wireless charging car dock --> HiFimeDIY Sabre Android DAC --> car amp.

  It is a little iffy, here's what I can restrict. Luckily, I don't use this player.

LG G Pad 7 (4.4.2) and Moto G (5.1, AOSP) works with Fiio E17.

Got bored and installed an early release of CM12 (Lollipop) on my Moto G, it's working with my Fiio E17.

Speaking of Moto G, I just got one. Moto G (1st gen) 4.4.4 --> USB OTG --> Fiio E17 and HiFimeDIY Sabre Android DAC --> PowerAMP.

Define "flash".

Why don't you just get it from Amazon? http://www.amazon.co.uk/SanDisk-SDSDQUA-128G-G46A-Class-MicroSDXC-Adapter/dp/B00IIJ6W4S/ref=sr_1_1?ie=UTF8&qid=1409599982&sr=8-1&keywords=128GB+MicroSDXC

I'm still new to the game, but I just joined the club, 2 hours ago. Previously using Sony XBA-2 IEMs (I wasn't a fan of headphones). My setups: Galaxy S4 (Poweramp) --> USB OTG --> Fiio E17 (+6 gain) Sansa Clip+ (Rockbox) --> Fiio E17 - It's not as comfortable as people claimed. Feels like...

Seems like a PITA to always turn ON/OFF the E17, as I tried that in my car. I decided to use this instead. http://hifimediy.com/index.php?route=product/product&product_id=124

  http://www.jdslabs.com/products/86/micro-to-mini-usb-otg-cable/

  What's your Device Installation Settings? System --> Advanced System Settings --> Hardware tab --> Device Installation Settings.

I use option #2. Here's my setup. http://forum.xda-developers.com/showpost.php?p=52569132&postcount=111

  Nobody? Used bluetooth for a phone call, same thing.