AVR-Chat

Im try to explain better my problem, I have a chinese RF module 
(receive and transmit) that encrypt  (code hopping System) I do not 
know if that is true (I have not datasheet or schematics)  in my 
country (Mexico) I cant buy a RF module (Transmitter and receiver), so 
I want use this chinese module for my project(remote control), the PIC 
decode RF and send orders to all the board, so I want use the same 
board ( the RF module is embeded in the board), the pic is in DIP, so I 
can put out the PIC to examine, the other components are surface.

I dont know how get the PIC code, the pic send some levels when detect 
the correct RF signal and I can detect thats leveles without problem 
and send orders by atmega8 on my own board, the problem is that I need 
order to the board by my atmega8 some actions while the PIC dont order 
that. The RF module is in a car alarm very cheap.

Thanks for help.