1998 Cadillac EL Dorado No Power to Windows, Locks, Gas Gau

I have a 1998 Cadillac Eldorado with 120000 miles on it. Yesterday I was messing around in the trunk with the power antenna, just disabling it because it had broke going through a car wash. This morning I went to start the car and noticed that the
power windows,
power locks,
gas gauges,
remote trunk and fuel door,
day running light,
A/C & Heat digital readout
all have quit on me. Also there was an

airbag warning on the digital display.

I thought that I may have blown a fuse and checked all fuses including the maxi fuses. They were all good atleast visually. I have been doing my research and it seems like it may have something to do with the rap (retained accessory power) or even more likely a fusable link somewhere. If you two car pros have any ideas of where to start looking and checking that would be a lifesaver. Thanks so so much, Joe