just connect it to one of the hsi wires
y did u buy the reluctor interface
easrly autronics needed them for toyotas but not the sm4
just wire the crank and cam sig to the relcutor inputs
and the spd wire from dash to a digital input or a high speed input (hsi)
if yr running the auto u need to run orig sc400 ecu so most stuff u just piggyback so all wires u can get at ecu
they are simple to wire