That is a very interesting question becuase it applys to the Con-cor version to. I'm having to get a guy in canada to custom install it for me.
Hi Guys, We do an install fo the LL DL109 with the new Digitrax DZ125. We mill the top of the frame to accept the decoder and pass the wires under the decoder. Standard motor isolation is needed. We have a 109 completed in Green New Haven. Nice runner too.