Is this normal?

Alright I need a little help from the pro's.  Pretty simple, just don't know if it's normal.  Example:  fade all the way front, balance all the way right or left.  I get a distorted, faded, low volume signal to all the other speakers.  Of course I have infinity, so with the metal dome tweets this sounds horrible.  I get in with the volume on the head unit around half  to all the way up.  My gain on my amplifier is not but only about 60%.  I have panasonic deck,  could it be just cause the pre-out amp is cross talking between the channels.   It's not the most expensive deck, but for 250 bucks, it shouldn't do that right, if that's what is happening.  If it's not normal, does anybody have any solutions?  Is it my amp, shorted wiring somewhere??  The reason I even bothered to fad and balance to the front speaker was cause I was hearing a little distortion in the tweet.  Thanks for your help fellas.

If you were hearing distortion in your tweet, maybe your gain is too high, hence the overall disturbance.

Try switching the rca's around and see if the same issue occurs, and try just one set at a time too.

well, I first used the 'ol turn gain all the way down and then turn HU up until I heard distortion then turn it back one notch and then set the gain.  I then followed up with a DMM and made sure I wasn't clipping or peaking past the amps wattage.  Alpine MRV-F357.    It was well below the 60 RMS and peak levels.  I tried pullign the gain down all the way and then slowly turning it up,  I starting hearing the speakers that were not supposed to be getting signal around 30%.   With a test tone cd, I only start clipping at about 90% gain, so I thought I was being conservative with it.  Oh well, gonna go out and try the rca switch around test.  Thanks for your help so far guys.  I'll let you know in a few minutes.