Cyrus1amp

hi i have a cyrus1 mark2 model with toggle switch can you fit a psx connector if so what would need to be changed in the way of capacitors i have already had this amp serviced with new electo,capacitors fitted most noticeably the two nichicon muse under the ribbon (green) i understand the fittment will take over the power amp section thanks for taking time to read this i am a novice to this game thanks.