Autopage RS725LCD ground when running?

Try to make a long question short. Which wire on the Autopage RS725LCD should I use as the "ground when running" to attach to the GM-SL bypass kit?

I believe I have it attached to the ignition 3, which allows the car to start I'm sure, but right after the theft light comes in, as well as the radio locks. Weird. When I put the key in the ignition and flip it to on, then hit the break to disengage the remote start, the headlights dim, almost to the point of being off, then in about 5 seconds, they come back up and the theft light turns off. As well does the radio.

Works yes, annoying as heck and could be connected to the proper wire, yes also.

Anyone know the proper wire I should be connecting the GM-SL to? I installed an RS620 which allows the pink wire to be programmed for ground out when running (if my memory is correct) but no such luck on the RS725.

Now I'm assuming this problem is because of this, if not, please by all means help!.

thanks guys!

Oh yea, just imagine if I wanted to make a long question eh :)

2002 Chev Impala

thanks