2005 chevy avalanche, remote start

Some of the wiring directions I have access to say, some of the ignition and the starter wires are smaller gauge at the ignition harness

I look at the ignition harness right at the key cylinder and there are 8 wires coming out of it and all are thicker gauge

can anyone help me out

I have already installed the audiovox ax901 on this vehicle, but I can't get it to remote start

plus the airbag light is on, i connected ignition 1 to pink, ignition 2 to white, and accessory 1 to orange, I also have had accessory 2 to brown, but the thing still doesn't start

I used the 456G that works perfect, for bypass I used the 555L  I wired passlock ground to black on the ignition switch, I cut the yellow wire in half, and connected properly, as I have done lots of these at work, I started the car with key to let the bypass program, turned it off after about 10 seconds (is this the proper way of doing this?)

when I go to remote start the vehicle it tries to start and basically starts but then immediately it dies

can someone help

there isn't an ORANGE / black wire on this vehicle, there is a black, yellow and RED / white