gmc acadia electrical problems

[msca1627]

hello i purchased a 2008 acadia wreck to rebuield for my wife and now i have it fixed but cant get some of the things back to working. it did not come with a keyless remote so i ordered one from ebay and programed it and had everthing working before i started fixing it. it got hit hard in the driver quarter and that is were the reciever box is and the case was busted so i replaced it with another reciever box with the same numbers and now it want work even tried pluging the busted one back up. dont really no if that caused the problem or not, i had alot of things unpluged,ive checked the fuses under the hood and under the passenger dash and all show to be good are they any other fuse boxes in the car.cant get the automatic lift gate to work want even open will i need to have it reprogramed were i unpluged a few things. or is it something im over looking. thanks for any help