C&O 4-8-2 Heavy Mountain

[Jake]

I recently purchased this engine, and just yesterday I bought a Digitrax decoder for it, now before Install this thing, I need to know where the capacitors are, so I can cut them, Now, I know that they look like mustard-yellow M&M's with legs, but there are four, two circular and two squareish, are all four capacitors or just two? Thanks in advance!

[SteamGene]

All the little ones.  All, I say.  (With apologies to Shakespeare's MCBETH) 
Gene

[Jake]

Thanks, and I believe it's Macbeth

[SteamGene]

Since Billy couldn't spell his own name, there's no telling how he spelt the name of the Thane of Cawdor. 
Gene