No central locks, stereo, lights

[Mischief3003]

Hey guys I have an 86 325e and I put in a keyless entry(K9 mundial) about a year and a half ago. Then yesterday It just stopped working. Sometimes i would come out to my car and it would lock it but not unlock it. '

Right now my trunk and gas door are locked. Tryed to turn it with my key but no good. I drilled out the trunk lock and it still wont open.
My passenger door will only lock and unlock itself with the key.
Drivers door will lock everything sometimes but not unlock anything.

I tried to jump the unlock wire thinking my keyless entry is just messed up and Now my stereo wont turn on, none of the interior lights will work, and my car makes a buzzing noise at random up behind the kick panel( I think it's the central locking computer).

Help me someone!! What could it possibly be and what will i need to fix it?

[StereoInstaller1]

Sounds like you roasted the central locking system.

When you "jumped" the unlock wire, what EXACTLY did you do?

[Mischief3003]

I connected a wire from the 12 volt source under the dash(power wire for the keyless entry) and touched it to the unlock wire.

I just undid the 3 bolts in the trunk using a 4 foot extension and now the trunk will jiggle a bit but it still wont open all the way.

Also, what would cause the stereo to be out? All of the fuses are fine.
But, when I pulled the 27 fuse out and pushed it in, there was that same buzzing in the car.

[StereoInstaller1]

Central locking works on a GROUND pulse, so if it was not fried before, it is now.

Fuse 27 runs the stereo (constant 12V) and central locking.

[Mischief3003]

So I did blow the fuse for the stereo. I got the interior lights working again. I went to the junkyard and grabbed a new central locking computer. When I plug it in it keeps clicking trying to lock the car I believe. I just got a new mundial 3 alarm and I hooked everything up and it doesn't want to lock or unlock anything.
Also, my passenger is stuck in lock and I cant turn it to unlock and my trunk is also stuck in lock.
WHAT IS GOING ON!!