Tuning Question

[nortonowner]

HI, I have a 2016 Nissan Maxima with the new sony non cd deck, all audison amps and bit one, etc. I'm using audio frog speakers. I have mids and tweets on the front pillars, mid bass in doors and 2 subs in trunk. I am having trouble getting tuned. If I set the distances so that on the iasca track with the 7 drums going from left to right sound correct, its seems the vocals are not centered. If I set it so the vocals are centered, it seems the drum track jumps from just left of center almost all the way to the right which doesn't sound correct. I cannot find a setting which makes vocals and drum track both sound proper. What problem might this be and where do I start to correct it? Thanks in advance for any ideas.

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