Hi, just came to the forums to see if anyone has any help regarding my issue.

I recently took my car to the dealer for an oil change, after getting it back 2 days later (today) i went to start my car & right when it cranked and went to start it completely turned off.
The gauges that move when you first turn on the car stopped mid way and now I cant do anything the car is not responding to anything at all.

Any help would be appreciated. Could it be the Immobilizer ? Dead battery ?

Important: Also in my fuse box there is some weird double fuse plugged in with a wire grounding the the bottom of the battery & 2 ends with electric tape hanging free all connected to the double "10" fuse plugged in


EDIT: tried jumping it with 3 cars. When the spark plugs are plugged into just my battery the other end has sparks if touched so it has juice ?

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1. measure battery voltage with everything off. Voltage = ???
2. measure battery voltage with key ON. Voltage = ???
3. measure battery voltage while cranking. Voltage = ???
4. measure battery voltage at idle. Voltage = ???
5. measure battery voltage at 3000rpms. Voltage = ???

Those 5 numbers will tell you everything you need to know to fix problem permanently.

Also post video of how you're doing this spark-plug test connected to battery? thx