Uhmmm like reached up there Took the ducting for the vents out took the gauge cluster out and surgecly put the replacement 4/8 ohm speaker up there, I wanna say up through the bottom...the replacement didn’t really fit so we cut the housing to make shift a mounting bracket and bolted the original like, mounting plate up there and connect and boom good to go...lots of being pressed on the floor between the seats and fire wall but once it’s there it’s done!