Loud clicking sound from the dash, ELECTRICAL ISSUES? Need a diagnosis

So I got in the truck this morning and when starting it up it didn't turn over immediately due to what appeared to be a weak battery, but the truck did start. Once the engine was running there was a loud clicking sound coming from the dash (sounds like the 4 ways being on but 4 ways weren't flashing). Also the dash lighting and stero lights were flashing in sync with the clicking sound.

I shut off the truck and the car alarm goes off. I deactivate that with the remote. I then start the truck back up (right away) and the electrical bit starts again. Shut it off, the car alarm goes off. I gave it a minuted, opened and closed the doors etc and started it up and again it the electrical clicking and light flashing. I'm late for work so I put the truck in reverse and it all stops, so I think, weird but ok....

...but not even 15 seconds down the road the car alarm goes off while I'm driving! and the clicking sound and light sync blinkiing starts again. I had to shut the truck off again, deactivate the alarm and wait. eventually it started with no alarm so I went to work.


So....has anyone had anything like this? Idea's?

 

Factory alarm or aftermarket?

 

factory and of course the warranty just expired on the vehicle

 

How far out of warrenty? Sometimes if you are just out of warrenty you can get a dealer to do a good will coverage.

 

The alarm in my 4Runner used to freak out like that once in a while. Do you have a toggle switch under the dash that you might have inadvertently kicked?

 

Did you figure this issue out? I am having similar problems but for different reasons. I had some subs in my backseat and the power wire from the battery touched something and now my electrical is acting similar to yours: dash lights flashing in sync and can't start truck. When I turn key, all dash lights flash as if it loses power?