2010 mrk4 horn not working no central locking keyfob not working and hazzord lights staying on

[ant23457]

I was trying to fix the boot as it kept failing i wiggled the wires from boot and boot would open
This time hazzords lights came on central locking stoped working horn stoped working and brake lights staying on and keyfob fail
could it be ive blown somthing in the bcm even when doors shut there is still a sign on dash saying doors open and interer light wont switch off
Ive got it booked in at seat on the 14th of august
I cant drive it as the hazzord lights wont switch off
expecting a large bill lol