the pink/white is second ignition. On Toyota/Lexus and some nissan models you have to use the second starter as well. use a relay. 86 and 30 to 12 volt constant, 85 to purple wire on small 4 pin plug (second negative start output on all dei products), 87 to second start wire in car, disregard 87a. or down and dirty (works fine most of the time) use 2, 6 amp or larger diodes on your single purple start output from alarm to make 2 output wires and simply run one to each of the lexus' start wires. The second start is usually a cold start wire, the car will probably start fine using only the first start wire but the first time it's cold as fawk the car isn't going to start correctly. Also what bypass/integration module are you using for factory immobilizer bypass?