Car won't start
 

Looks like trouble comes in 3's.... another car won't start thread.

2004 JCW that has a newish (less than 1 year old) red top. I had taken out the HU a few days ago, along with rear seats, and right side piece of plastic in the rear. Essentially getting ready for a new stereo & amp install. I had driven it for a few days with no problem whatsoever.
I got up yesterday to head to work and the car did not respond to my key fob. Nothing. So I unlocked the door manually and the car did nothing when I put the key in. No lights, beeps or diddly squat. I did not want to be late for work so I just got in a spare & took off.
I thought my fob might need a new battery (original) and I thought I remembered reading somewhere that using a key to unlock may "lock" the electrical system. Has anyone heard of anything like that?
Anyway, I replaced the battery & nothing happened. I tried to boost the car, nothing. No lights, beepers, etc.
I charged the battery last night (10A/hr for about 8 hours) and nothing.
I am about to pull the ground & reattach to see if anything resets. If nothing then, I will pull the battery & have it load tested, but that seems like I am grasping at straws.
Any thoughts so far?
Is there a fuse that could account for this? Not like I have done anything to blow one.
I am just nervous as hell now that just today UPS dropped off my new amps & subwoofer and I fear that the car is drawing a line in the sand.

OK, so I went and took the battery to be checked out & everything came back dandy. I installed it and checked for voltage in the engine compartment and there was, totally. So the big-assed first fuse is OK. Who knows where the next one in line is? I do not see it in the fuse block. Thanks for your insight!

235A main fuse problem
 

OK, so I tested the positive lead on both sides of the mega-fuse and had voltage. I went up into the bonnet and checked for voltage at the terminal there, and had 12.62VDC. I just did not have the time to follow it further, and I guessed it was my immobiliser, so I called Mini and got directions =, etc, to reprogram key fob, no luck. So I had it towed in and they fixed it yesterday. The diagnosis? Corroded mega fuse. They removed it and cleaned it and charged me $118. (I am not really griping about the price, actually a great deal relieved)
I assume the water in the boot problem started this problem. What I want to know is, I had VOLTAGE THROUGH THE FUSE. So why would not even a door light come on? There is not that much load for a door chime. Does the ECU require a certain amperage before it will allow current to the system?

You can have voltage but not the right amount of current or power.

At least you're back on the road again.

...Les