Syntax-Err0r

Hey all, just joined the forums. I have a 96 impreza 2.2 5 spd and the reverse lights do not come on when in gear. I've checked the bulbs and all the fuses and everything checked out. After doing some research, I came up with the back up light switch as a possible fix. Even with the service manual I haven't been able to find the location of this part Duralast/Back-Up Light Switch (JA4257) | AutoZone.com . Anybody have any experience with this? My cruise control also doesn't work. Thanks in advance!