KICKER 45KMA6001 Marine Boat 600w Mono Amplifier 2-ohm +Amp Kit KMA600.1 Class D

hey guys today i'm going to be installing uh these eight inch speakers in place of the six and a half's into this 21 foot boat it currently has two speakers in the back two in the bow and i'd like to put two mid cabin not 100 sure where i'm gonna put them in there um i do have a couple spots drawn out so before i did any cutting i just took that factory hole one of the factory holes and i ran the screw in there with just the grille and just looked to see where it would fit took a pencil traced around it this way i knew that's where the grille would go in those boxes they have a round piece of cardboard made sure it was center traced around it then started cutting but i'm pre-fitting everything before you do any cutting and the cushion's out right now so we'll just slide the cushion in and you can see it's tight but it fits so now that i know that perfect i'll take my pencil and trace ar