Can equalizers and dsps integer with one another?

[Dee]

Ok I have a KENWOOD running all of my speakers in factory locations.I have a nvx equalizer  from sun out on head unit to subs and mono amp. And then I have a prv 2.8 dsp which feeds signal from head unit to 4 channel skar. When makin adjustments I hear a change in the entire system even the speakers hooked directly to head unit. Can someone explain this? And what steps do I need to take to correct this or is it normal 

[Joe X]

That is not normal. Your car is possessed most likely.

[Dee]

Yea I said that too truck is bipolar 😂😂