c5dura,
I used a meter to see which of the two was the correct wire. I just turned on the key and looked for voltage and then for it to go away when the light went off. Unfortunately, I am not home with my notes or I could tell you for sure. On the disarm, it is on the BCM. I think the light green is the correct wire, but again, that is from memory. You are correct that a tan/blk is a tan wire with a black strip. For dark tan, it would be labeled dk. tan.
Sorry I don't have my notes to be sure.
Later,
Chris
02 2500HD LT Dmax/Alli CC 4x4 Lt Pewter, Tan in, Amsoil, transynd, Bilsteins, Amsoil Air Filt, JK 4\" Exht, RollnLock, Rhino Liner, Remote start, alarm, High Idle, SPA DG211, Pred, Mega, Fumoto, Remote oil bypass, XL Tranny cooler, XM, Cell kit