Factory CD Changer Wiring

[Jason]

Nate and Joe Black,

Do either of you use an MP3 player through the auxiliary input adapter. There is a mention in the description that mentions the ouput of some devices is too low and can cause hissing, requiring a line driver to put signal.
Did either of you have any issue with this?

Thanks,

[Joe_Black]

Hopefully Nate will pop on and answer as I'm using a Sony single-disc head unit and replaced my factory changer with the storage cubby. Having the ability to read MP3's from disc negates the need for a changer pretty much, but then again I rarely listen to discs due to satellite radio.