When I debadged my cavalier a long time ago I bought some adhesive remover from the local auto paint supply store (i dont remember what it was called) and it worked liked magic. All you had to do was heat gun off the badges spray the glue with the remover and wipe away. Of course you had to wash and polish. All I did this time around was heat gunned the badges off pealed the glue away with my fingers with it still warm and use a little rubbing compound and wax to finish the job.