I found serial number (code)

[izaihany]

I found these numbers model

SIEMENS VDO RD3-01
VDAPVF40407731
REF: PEUGEOT
96 545 978 XT00
VDV0407731

Model No: PSARCD100-04 T0X000
Prod No : FD0404400407731



It is from my peugeot 307 2001. The radio still working but I want buy new one and sell this one with code. I do not know how could I discover security code from radio. Thank you