Massive Electrical System Failure: Is my car Hunted?

[JonK]

The followings started in chronological order during last several days.
(05 4.4 52Kmi)

1. All the ashtray electrical output died. No 12v outputs.
2. False-positive Airbag and Front Seat-Belt Warning Signs accompanied by alarms that won't disappear.
3. Seat-warmers dead.
4. Final Draws: Headlights blinks erratically during driving, inside lights turns on and off as well that persisted no matter.

I had #1, #2 problem two years ago. They explanations were, for #1 blown fuses, for #2 discharged battery. After recharging the problem disappeared.

I assumed that soon battery replacement is required so I searched the forum for few hours for replacement battery.

Since I had my car re-certified a month ago I took them in yesterday. They called me in the afternoon they are narrowing down to locate plausible cause for the problem. Obviously no battery issue.

Any expert opninions?