I have mine mounted in the dash and use it solely as my source unit for all music needs. With wireless tethering and Pandora, IHeartRadio and the music apps, there is no reason for a head unit. I gave up cd's years ago.
All i did was use a 3.5 jack to rca wire and ran a pre-amp eq to step up the input signal to 5 volts, The plus to this is with the pre-amp is there are two sets of inputs and it splits the input signal to the front, rear, and subs reallly well.
The only downside, if you call it that, is you will need to install amplifiers to power your speakers, but thats the avenue i was going anyways.
I also purchased a 4 port 12v station like the 3 port above. Hard wired it in to the lighter acc wires. Have three of those usb 2 port plugs to charge all my toys, all hidden under the console for a clean look.
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