Cars parked for the winter. I went to start it the other day and as I pushed the clutch in and turned the key there was an electrical sounding *pop* and then no power anywhere. No lights no keyless etc..

Is there a main fuse or relay I should be checking? Battery is fully charged.

 

Check your ignition fuse and fuses in general under the hood, this has happened to me before driving down the road due to an exposed wire grounding out.

 

Is everything dead, including the starter?

http://iihs.net/fsm/?dir=40

 

corrosion or loose connection at the battery. it was "Tight" enough to deliver a couple of amps for lighting and electronic modules, but once you tried to draw a few hundred amps for the starter, it arced and broke the connection.

 

+1

Clean and tighten your battery terminals.

 

Clean the battery terminals and all the fuses look okay... Still 0 power. Is there a main power relay I should be looking for?

 

Do you have a volt meter? Check the battery voltage to make sure it isn't too low.

 

Fully charged battery reading 12 volts, no interior lights, no keyless, nothing.

 

I've seen batteries that read decent voltage with no load but went to 0 volts when a simple light bulb was connected. And a healthy, charged battery with no load should read 12.6 volts; slightly higher if you read it within a few hours of being on charge.

 

Any chance it rained recently? Is the carpet damp by the passenger side kick panel?