Major electrical gremlins lurking

[alfa_romeo55]

Gentlemen,

Newbie here. I purchased a 2003 4.6is about 7 months ago and it ran perfectly until 2 weeks ago. I am in need of help and hoping someone can help me solve my electrical gremlins. Here is a list of what happens once the car is started and travels about 5 miles: ( Also it never used to have these symptoms. Only in the last 2 weeks have the gremlins surfaced.)

1) trans fail safe mode illuminates
2) While driving the PRN"D" light will disappear sending it into Trans Fail Safe mode
2) self level susp inactive illuminates
3) When I use the key fob to open the door, the alarm goes off instantly with the push of the unlock button.
4) While driving, the a/c will will blow cold air and for some reason keep blowing but no more cold air.
5) the steering will feel great one minute and then become noticeably harder to steer
6) The needle on the temperature gauge jumps into the red immediately.
7) The needle for transmission temperature gauge jumps to hot.
8) We have had rain rain and more rain here in South Florida and behind the drivers seat the floor is wet.
9) 30amp Fuse for the self leveling suspension in the boot/trunk blows every time I replace it. ( the last fuse in the sequence of fuses). The 7.5amp fuse remains intact.

I purchased a new battery recently and just today put in another battery just to test and see if it was in fact a dead battery. The car displays the same symptoms. I have recently also changed the water cooled alternator 4 months ago. And yes the car does shut down and goes to sleep after 16 minutes..... Where could I possibly have a short in the system??? The rear trunk is dry as a desert. Also the radio works.

Thanks for taking the time to read. any suggestions will be greatly appreciated.