you can probably bypass the neutral safety switch somehow. you wont find any place to install it for you for liability reasons. you'll have to do it or a friend will. just be sure you leave it out of gear.
2003 Rubicon, 4.0L, 5SPD, Custom 4.75" lift, 33" MT Baja Claws
1999 SE, 2.5L, 5SPD, sold it
PM me for wheeling in and around Northern Illinois