I have 2 questions (dumb perhaps), but I need to know how to remove
the black large diameter air distribution ducts that are above the driver's and passenger's lower carpeted cover panels. I have these carpeted panels off. I am trying to get to the blower motor (for heat/ac) and the cruise amp. (silver box) which I am assuming is on the driver's side (like on my 300SD). On my 300SD, it does not have these large black ducts. Any help would be appreciated.

Richard Greene