Fnm16p mp3 with arduino nano, uno

please give me only one answer--
could I use pin 0 and 1 as serial with fnm16p if ys
how could I?
if not, why?
I am getting working with pins 10 and 11 but if I want to use same program with
pin 0 and 1 not working rather I am not opening the serial monitor
so now
how can I complete my project
please help ....