[NAIL3]

Hello everyone, Went to get in my car this morning and there was zero electrical power. The key was also having trouble coming out of the ignition. There has been a clicking noise coming from the fuse box since I bought the car (about 4 months ago) and the headlights and taillights stay on when i pull the key out of the ignition (not sure if this has anything to do with the no power).

Did an ISTA D diag a couple weeks back and had some CAS faults and some other modules were faulty including the FRM and DSC.

Is it possible that its an alternator or maybe a bad B+ cable? Any help would be much appreciated!