An image which just starts a shell isn't a lot of use when the player is used in the car ;)

To get a shell, this *should* work (try this as root (or something with access to ttyS0) on linux, with the empeg connected to ttyS0)

# stty speed 115200
# /bin/echo "\002\000\000\001\000\052\000\000\000\231\237" >/dev/ttyS0

Note that you have to use /bin/echo - some shell's builtin echo's don't do octal.

You should then get a shell prompt.

Hugo