Recently had a pioneer unit installed in my 2009 jk and am having volume issues, it doesn't seem to be reaching its max volume like it should, or did when the stock unit was in. It definately will not be loud enough with the top off. I also am having issues with the speakers (mainly back set above rear seats, it also has the infinity system) but they will fade in and out giving the people in back a surround sound effect. I had it installed at an audio shop and they have since then installed a different unit and screwed with it many times,maybe they are complete idiots and i should go else where but i am curious if anyone has experienced this problem or would know the fix? Thanks

 

which Pioneer unit is it?

 

Its the P2300DVD