The installation was very easy and very sucessful. The delay was when I found I did not have a speaker that would fit and had to order one from Tony.
I took out the exitsing board and indstalled both a decoder and a power module in its place. In the smolebox I installed a SUSI sound module and at the top of the smokestack I installed a speaker. Since the sound goes up the volumn is rather good for such a small lspeaker (1.22")
I will use the loco as a demo one in my clinics and it will be udes on the railroad to switch one of the industrial areas.