Peugeot 306 manual

Hie

I am looking for the site where I can download the manual for the
peugeot 306 xn aero.Again the Peugeot 306 xn earo has the original
radio in it but I cant play the radio,someone put the wrong pin number
for the radio seven times and now,the radio is continual writting 7 error.
When I try to ever ride the pin or to take off the battery,the radio doesn`t prompt me for the pin number.

Please help me.