My 2005 XLR's trunk will open but not close. You have to either close the trunk manually, or open the top and close it by closing the top. I only have 22K miles on it. Is it likely the switch in the trunk? (when I push the button in the trunk nothing happens) A sensor problem? The hydraulics seem fine as it closes as part of the top closing sequence. Im taking it to my dealer a week for monday and am wondering what to expect since Im 6-7 months out of the four yr warranty period. Can anyone give me some advice on what Im facing? Thanks.