Trunk Lid Open Dash light on and Alarm randomly going off/not locking.

[Chucklez]

So last summer my sister slammed my back hatch closed and broke. Instead of replacing it for $150 or so at the time we drilled out the rivets and opened up the hatch assembly and all that happened was the spring got lose from the assembly so it wouldn't hold close, we fixed it after messing with it for a while and put it back together and plugged it in and it worked! Sweet problem solved right? Well we thought so until we realized the car wouldn't lock. Hatch worked flawlessly but the car thought the trunk was still open so we close the hatch then unplugged the assembly and it locked and turned the alarm on fine no idea why it wasn't Locking properly since the hatch worked.

So we left it like that for weeks because it wasn't a huge deal then I wanted to use the trunk again so we plug the hatch back in and it locked and turned the alarm on! Figured hey maybe the computer needed to re recognize the hatch working? But soon after I was having intermittent locking and alarm issues with it and having the dash light saying "Trunk Lid Open" warning come up while driving. It's slowly gotten worse and worse where now I physically can't lock my car without the alarm going off in 5-10 minutes and if I don't hear it the battery dies. Anyone have any idea what's going on with the hatch and alarm? Thanks for reading and any help guys!

Also my car is a 2006 E53 BMW X5 4.8is and if formatting is weird sorry typing this on my phone.