How can I increase the trim wheel sound? I really want to hear that baby roll. It is extremely loud in the real thing at least according to the youtube videos. Not so much in this soundset. Everything else seems perfect though. I set sound volume in the fmc options to 100 and still the sound is not that loud.

You can tweak certain aspects of the cockpit sounds in the CDU, however, it's not possible to increase the volume on one particular control or switch except by increasing the volume of that single sound file in a sound editing program. If you cannot do that yourself or do not have the right program, if you find the sound file and email me a copy I will edit the volume for you.