Well....I need help.....

My antenna amplifier seems to have gone bad. It's giving the characteristic symptoms with no key fob functionality, bad radio reception and blowing of the fuse. There are good links for how to get to the amplifier in the sedans, but not much on the wagon. I think I understand that it is located on the drivers side c pillar (at the back)......my problem is I can't understand how to remove the trim and headliner to get to it. The track for the automatic rear shade looks very complex to remove to get the rest of the trim off........I even ordered a service manual DVD off of ebay but it is no good since it's, of all things, in German....

I just need to understand hoe to remove the back trim to get to the antenna amplifier without ruining it.....

Thanks.....joe