i want to put my sirius directly into the hu , the facotry hu , how do i take it out so i can hook the parts i need to into the antenna in. Anyone got any pics or a writeup.

dts or base?

base 2000 deville.

simple
theres a trim piece
remove it
then depress the two brass tabs on the sides and pull the unit out

how do you remove the trim piece, it looks like it just snaps in so all i need to do is use a flat screwdriver and pry it out???

yup
start around the hu and work up to the dash