Since the owners manual is useless on this. My suggestion would be since it has to be removed to either replace or repair go ahead and try to remove it. Take down the trunk lid liner and see how it comes out. The only other thing I can think of is to get a repair manual from your local parts store and see what it has to say about it. Maybe you can even look through one at the store and not need to buy it, but they are not that expensive. And since the owners manual is quite useless it may even save you money in the long run.