Installing headunit on 1993 legend ls

hi, im new to the forum, so bare with me.

I was wondering how to take apart the interior parts to get to the stock headunit so that I can put my own head unit in? my legend has the wood trim around the shifter and stock headunit, does that cause any issues? is there a link of pictured or written instuctions on how to replace the stock headunit? i tried to take it apart myself, but i only found two screws, which were the small ones under the ash tray/ cigarette lighter, other than that, I dont know how to take anything apart to get to the deck. If you guys can help me in anyway, that would be great. thanks.