on the fly vex autonomus mode

[CmptrGk]

i just got the vex program module today. I'm using the code from http://www.vexlabs.com because I'm already using similar code on the FRC controller.

i would like to use rc_dig_in16 to enable and disable the autonomous mode. I've tried
if(rc_dig_in16 == 1)
{
autonomous_mode = 1;
}
else if(rc_dig_in16 == 0)
{
autonomous_mode = 0;
}
in both main.c and user_routines_fast.c

i think that my problem lies in the fact that autonomus is enabled differnetly on the vex controller because of the following code:
#if ENABLE_AUTONOMOUS_MODE
txdata.user_cmd = 0x02; /* Tell master you want to be in auton mode. */
#endif

i bet i could get this to work if i knew the "code" for normal user mode i could do something like this:
if (rc_dig_in16 == 1)
{
txdata.user_cmd = 0x02;
}
else
{
txdata.user_cmd = whatever is the user mode;
}

if anybody knows whether this will work or not, please help.