passlock I, resistor/relay method

I am looking at tech tip, 1047 (gm passlock I bypass)  I see that there are 2 relays,  what is the 2nd one for?

and my next question is, where do i connect both pin87 on each relay? (i know the black wire on the 3 wire ribbon) but can they be connected at the same point, or do i need to cut  it, and connect one on each side of  wiring.

no local stores have the 555lw in stock, and i dont want to really wait

2nd relay is bulb check....it must see a ground before passlock resistor.

Connect 87 and 87a of the first relay as per diagram to the passlock ground reference wire.

Pin 87 bulb check goes on small black wire found in the ignition connector with the two RED main 12v positive wires.