^^^ +1 on the tape player with tape jammed in it.
Simple test for that. get four solid small wires or screwdrivers to put in the
removal holes on the oval radio pod and pull it out. Then disconnect
just the wires going to the radio control pod (NOT the climate controls)
then see if the draw goes down.
My 98 had that issue after i loaned the car to my daughter and she
got a cassette tape ipod adapter stuck in the cassette slot and jammed
it up trying to get it out.
If you have the anti theft on the car, one other user had an issue where
the rear trunk/lift gate switch was out of alignment and causing the anti theft to draw too much current.
If you have trunk , ash try and glove box lights, pull the bulbs out
to confirm they cannot draw any power if the switch is sticking.