Hello Aveo owner, since I have read the question of how to expand the original radio somewhere the other day, I want to let you share a found solution Quote: You need to pry between the top of the climate control panel and the bottom of the radio trim with a flat scratchdriver to loose the trim around the radio enough to grave it and gently pull it off with your hands. The only problem I have had is that AM does not come in at all with the new antenna adaptor. I have tried it with 2 different radios and still no luck. FM is fine. Let’s call it: You have to chisel between the climate control panel and the bottom part of the radio with a flat screwdriver to loosen the frame too far enough, so that you can then carefully pull the radio out. There is nothing so far about screws…… Greetings and reports if it worked, if someone wants to try it Silvio