Originally posted by kpack05 on the RailPro Users Yahoo! Group on Oct 2, 2015Looking at the install for the LifeLike E8, it doesn't look like you will just be able to plug the LM-2S into the existing board. The light board has 8 pins sticking up with then go into a small 8-pin board where all the wires connect. There is nowhere to plug in a normal 8-pin harness. TCS made a decoder specifically to address this wierd design, which shows that there isn't an easy way aroud it.
The best thing to do would be to take out all the factory electronics and hardwire in a LM-2S. It would be the cleanest way to do it, but is a bit of a hassle to connect all the wires. It would leave you with plenty of space for some very nice speakers though.
As far as the speaker for the SD45 goes, it looks like it will be a 28mm round. I'm not positive on this without seeing one but that's the size that has been in other Athearn locos like the 70ACe and ES44. The best speaker for this application is the Railmaster Hobbies DS28RND-8.
http://www.railmasterhobbies.com/Speakers.htm.
Hope that helps!
-Kevin