I installed 4 door speaker and the right channel works fine. the front door and rear deck and front tweeter on 5he right sound great, however the left channel gets completely distorted if when I turn the volume past about 3 out of 18 so it sounds great on the left at a very low volume no distortions interference whatsoever but as soon as i increase the volume I cant hear anything at all except the distortion in the left. Like I said it's only the left channel. If I have it balanced all the way to the right that side sounds awesome. I've tried different speakers, I hooked it up to the factory amp and the aftermarket amp and it's the same problem I'm completely stumped. If you need any more details I will be checking this regularly please help! thank you