can anyone tell me what the middle box is on the row of three?

it is located just above the gas pedal and to the right very visable

http://members.cox.net/sara.guse/jeep%20dash%201.JPG

http://members.cox.net/sara.guse/jeep%20dash%202.JPG

http://members.cox.net/sara.guse/jeep%20dash%203.JPG

what year and model?

91 jeep cherokee 4 door....

Those appear to be relays, but to what I dont know.

plug that part # in on www.advanceautoparts.com or www.autozone.com

that should give you some idea of what it is as long as they actually list it.