Shift Locked in Park.

Hey Guys,
I've got an automatic 2004 Mazda 3 that's been giving me a lot of problems.
The car is locked in park, i've got no brake lights and no horn.
I've checked every fuse in both the exterior and interior compartments and they all work.
The horn itself works, I've checked it on a battery but it's not getting any power.
I've removed the brake light switch and it's working but it's not getting any power either.
The fuse for the air conditioner keeps blowing and today the fuse for the power steering also blew.

Any advise would be appreciated.
Thank-you.
 
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