I have an 07 & an 08.....bought both brand new.....the 07 developed a small click sound....no such sound on the 08. I lubed it all I could & never could get rid of that little click.
Since I leave the spoiler up all the time (I think it looks better with it up)...the sound doesn't bother me. I suppose you'd have to replace the spoiler motor to get rid of the click?????