Changing firmware from Audi to BMW

[nunaat]

Hi, i need help about changing firmware in an Audi Phatbox to Bmw. I´d like to install this phatbox in my BMW. Iám looking for the blitzsafe and i can´t find the cable to swich to BMW head unit. Please tell me i f i can change the firmware from Audi to BMW before i but the other parts.
Thanks

[My_B5]

I have about the same question, just that I want to change from Audi to Sony firmware. Is it possible? I also need to make my own cable of course...

[sbingner]

I still  haven't gotten the Sony pinouts from anybody, so it may or may not be possible...  

[nunaat]

You mean that i only need the bmw cable? What about the firmware?

[bicsingh]

Hi there,

just curious if you had any luck with this also have a friend who would like to use a Audi/VW phatbox in a BMW....

TIA
Bic