Well I was out in my garage just hooked up my ipod to my new headunit and was playing around with it when all of a sudden my mid/highs get real quiet and my bass got real loud, I have pioneer rev 6.5 components running on a crunch100.4 amp set in 2 channel mode and my subs are two 10 pioneer premier championship series dual 2 on a audiobahn amp.( forgot model) And the headunit is a sony xav-7w flip out.
I tried to see what it was so I turned the subs off and faded the volume around and it plays fine out of the passenger side speaker but is real quiet on the drivers side. I tried fading it all the way to the drivers side but it still is quiet but it also still plays the same out of the passenger side. What should I do to trouble shoot this?