Autoradio Pioneer challenge

[jhackp]

hello

I want to know how I can edit a pioneer autoradio firmware...

PIONEER AVH-X2500BT

link to the firmware :

zip : http://www.pioneer.eu/files/support/AVH/...Update.zip
page link : http://www.pioneer.eu/fr/support/softwar...wnload_327


the file is in .BIN and i have try a lot of software to open it...

if someone can push me on the good raod, it is very cool.

thank you all

and sorry formy bad english