I finally have the original Lionel Acela TMCC set perfectly aligned on the track so that all features operate correctly. With that said, I am hearing a metal squeaking sound from the wheels of a few of the cars that I assume means that I need to lubricate. However, I don't really want to screw up the I/R connections between the cars. Is there any video that someone has or knows of (I unsuccessfully tried a Google search) that possibly shows how to lubricate the wheels of the Acela without removing it from the track? I assume I'd need some sort of needle-nosed applicator, and, if so, any suggestion on the lubrication liquid that I should use? Thanks for the help!