HELP!, cant turn off alarm after replacing battery

[mole]

Hello fellow german 7series owners!
I hope you can reply in english cos my german is not so good

My problem is that after I took out the battery for a resharge and then put it back in the alarm went off. I cant turn it off.
I have tried with locking the doors with key and with the remote. I have two buttons on my remote.
I localized the horn for the alarm and pulled out the cable before my neighbours could kill me
I have checked all the fuses and they are ok.
I have no idea of what to do, I cant start the car


Its a 1994 730i

Mike from Sweden