Wiring in Defi Controller

[nsn240]

What would you suggest wiring my Defi controller into?
I need a 12v source ignition on, 12v constant, 12v white wire when small lamp is on (is that low beams or what?) and the ground...

any suggestions would be great, i'm not to good at this wiring stuff... right now i'm using the the radio ACC and constant for the 2 12v's, figured out the white wire needs a 12v constant as well... will use the cig lighter input for that and attach the ground to the exit

thanks