Note: only some vehicle have extras
extra ids are from 1 - 9 depending on the vehicle
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^ not sure if outdated or simply wrong. Max extra ID for b944 is 14
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p2 is not a on/off toggle. mostly 0 means on and 1 means off.
not sure if it really should be a BOOL.
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Confirmed p2 does not work as a bool. Changed to int. [0=on, 1=off]