And I have AJVC digital whole theater system model number TH - M606/TH - M603I wanted to know if I could hook up and equalizer to the 6 disk DVD player If you could give me some how I would appreciate it
There are no connections on the JVC that you can use an EQ with.
You can use an external CD changer and connect that to the EQ in and the EQ out to an input on the JVC.
Since that's a surround unit I doubt you could hack it to add the correct connections. There won't be an analog stereo output even internally.