anyone please suggest what to do,

have a 99 rx300. the car was locked and when pressed the key to unlock. it does not and a strange continuous clicking noise is coming out near or from fuse box.

the only way to stop the continuous clicking sound was disc the battery. i checkd the fuse and it looks good (not broken). when i try to start it, all dashboard lights come on for a second and then turn off and clicking continues.
:uhoh: :banghead:
what could this be?