How do i change the radio in a 1997 buick skylark?

i want to change the radio in a 1997 buick skylark. How does the old unit come out?|||well, you gotta take the dashboard apart , the screws are located in many parts of the dash , if you are putting in a new head unit that has no plugs , you need to pull out the old unit , it may be screwed in thanks to GM's theft protection , you need to cut the plugs off the ends , and connect the wires m the red and yellow wire on your head unit are your positive wire (red) and your memory cord , just connect both of them to your power wire , connect your ground wire (black) and plug in your antenna , after that you have nothing but speaker wires you connect then in sets like front left is one set with 2 wires and all the others are the same , after you strip and connect your positive and memory cords cap them off to prevent shorts , and connect your black ground wire to the black wire in the dash and cap it off as well , after you connect your speaker wires you need to either tape them or cap them , don't leave any bare wire showing , put your unit back in the dash put your screws in put the dash back together and your ready to go !! Good luck if you need any help contact me through messenger and i will guide you|||by taking it out and puting a new one in