Check out the links in the forum, as it appears that the newer Pio's can be made multi regions / RCE compatible via a pronto or other learning remote.
Not certain if this is true as I have not tried it
If you cant find the codes in other posts here is an excert
I pasted the code into TSS. downloaded into the Marantz, put the player into standby, sent the code and jobs done...The player now auto selects region and plays RCE disks no problem (tested with region1 superbit version of Panic Room)
John which remote will you be using and on which player?
let me know how you get on...
So here's the code. Happy multi-regioning ALL:-
0000 0067 0050 0000 0154 00af 0016 0040 0016 0040 0015 0015 0015 0015 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0015 0015 0016 0040 0016 0040 0016 0040 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0015 0015 0016 0040 0016 0040 0015 0015 0015 0015 0016 0040 0015 0015 0016 0040 0016 0040 0015 0015 0015 0015 0016 0040 0016 0040 0015 0015 0014 045d 0154 00ae 0016 0040 0016 0040 0016 0040 0016 0040 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0015 0015 0015 0015 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0016 0040 0016 0040 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0015 0015 0016 0040 0015 0015 0016 0040 0016 0040 0014 045d 0154 00ae 0016 0040 0016 0040 0015 0015 0015 0015 0015 0015 0016 0040 0015 0015 0016 0040 0015 0015 0015 0015 0014 00af
Hope it works for you