Ok, so I was rewiring my system to clean it up a bit. I have upgrade speakers, an amp and sub running off the Stock Non-Bose headunit using a line output converter. Well something weird happen. I left the line output unplug from the line output convert, so basically the radio was not connect to the amp or speakers.
Ok, so I turn the radio on and crank the volume all the way up. Funny thing is I get sound (very low, muted music) coming out the left speakers.


How is this possible? Nothing connected and yet I still get sound out. Seems only to be on the left channel cause I played with the balance.