audio set-up for beginners [continued]

[jmpet626]

Hey guys,, need your expertise here. I have The ff installed in my 2015 fortuner: 10" sealed kicker sub, kinetic kd 80.4 amp and firland ev612 seps. I'm planning to replace my stock rear speakers with either Finland 502c or Ryan audio 650q coaxial speakers. Is this advisable? Or shall I maintain my stock rear speakers?

Keep niyo na lang rear niyo sir and yung fade ng speakers i bias niyo towards the front or totally wala na sa rear.