I cannot thank you gentlemen enough for all the terrific advice you've given me. And, in such a short time. It turns out the the engine was upgraded by a certified MTH dealer. The gentleman, (and a true gentleman), that I purchased the engine from gave me all of the details. The service center is not open today, but I'll be in contact with them tomorrow to discuss options. I was told that the engine was upgraded to the latest MTH system. Not exactly sure yet what that amounts to, but once I know, I'll post the results on this thread. I am currently letting the engine run in neutral, (of course), at between 12 and 15 volts, as per Berry's suggestion. (Can't see any harm in doing this)? Just to see if something happens. "G", (authorized service rep), wrote of his concern with the horn/speaker shorting out. I'll open the tender again, should the charge of 5 or hours not help, and see if any speaker wires are the problem. The advice on a speaker change will be discussed with the service center, to see if they indeed addressed this. However, I won't go too far with me working inside the tender, I'm competent, but not qualified to take this work too far.
The really good news is that, with this upgrade, I might be able to use an MTH Commander Controller. That said, I'm more than likely going to get into full DCC, so it may not matter.
Again, you guys are great, hope I can return the favor some day. Lou
