Wolf-Uk, If your new player has a 2.5mm jack the best thing to do is buy a 2.5-3.5 converter like this
http://www.mympxplayer.org/35mm-to-2...er-asp103.html
If you are going to purchase your new player from Uxcell you might as well go into thr free draw they are currently running for MyMPxPlayer.org members. I think they also stock the converters.
http://www.mympxplayer.org/lucky-dra...962.html#12962