I believe the alarm system is the same on all zj's. The purple/yellow wire runs behind the kick panel, throught the boot in the door jamb and into the door. the reason most people ground it behind the door panel is because there is more room to work and its easier to find that wire in the door. There are a LOT of wires behind the kick panels. From what I've read since I've owned my ZJ, the Problem with factory alarm seems to be associated mostly with the drivers door keylock.
'95 ZJ Limited 4.0
2.25" BB , 31 10.5 15 Treadwright MTG's on Black Rock steelies
Everything "pimpin' Gold" REMOVED!
Looking for a REAR tow hook and bracket!