[ChevyGuy]

Is the auxiliary input for the factory radio considered a low level (pre amp input)?

I belive it's a headphone/line level connection. But I think others have indicated that the sound quality isn't very good.

Depending on your head unit, you might want to use a Bluetooth adapter. That will likely interfere with using your phone as a handsfree unit, but it should give you better quality. Another option is to rip all your CDs to a MP3/M4A and put it on a thumb drive. Once you've tagged them, you'll get title, song, album and even cover art on the display (if you have a color display).