Renault Megane In car radio

Question

I need a code for my fathers radio as he has just bought a Renault Megane and when he went to switch on the radio it asked for him to enter a four digit code.If you could get me the code for it I would very much appreciate it.The details are as followed;
Renault Radio Sat 4000
7700 426 414 A375
PHILIPS 22DC449/62L
9022 214 49624
PA2Bis, 2*8W, RDS
no cd changer control
FD 07 98 16 4152933
Model no. 22DC449/62L
PROD NO: FD 0798164152933
These are all the details above that appear on the top of the stereo.
Many Regards