Trying to take the rear spoiler off my '00 SSEI for repaint. Loosened all 4 nuts on the bottom of trunk lid, but still won't come off. Any thoughts would be appreciated.

Alright, I looked this up in the FSM. This is the procedure for Spoiler Replacement -Rear.
1. Open the rear compartment lid.
2. Remove the caps that cover the the outboard spoiler studs.
3. Remove the nuts that retain the spoiler to the rear compartment lid.
4. Remove the spoiler from the vehicle.
There is no mention of how many nuts to remove, and it'* not depicted in the graphic. Please keep us posted.

there are 6 nuts

Mine was siliconed as well as the 6 nuts.
Use a long piece of dental floss to cut through the silicone.
Re-silicone it when you go to put it back on to keep water from leaking into the trunk.