Originally Posted by BUFFBOY

hey guys can someone direct me to the thread where i can find out how to upgrade my Sat system on my 2006 M3.. i have the mk iv screen verson with stacker in the boot and single cd player under the screen

please help

theres a link where it takes you to magedownloads to download this 100mb+ file but im not sure what to do after that and how its done...

please please help

thanks