Bob good morning, I just recently change mine out on my 2008 Monaco Dynasty Squire, after trying to find the controller switches to no avail. I ordered a 40450 Southwire Transfer Switch through Boat & RV Accessories they had the best price $ 671.00 free shipping it was easy to install and it was almost the identical unit with the exception of a few power cord connections. I receive in about a week, I just ordered the remote plug in unit that lets you know is the voltage is high/low or the polarity is incorrect from shore power. I how this helps, let me know if you have any question, feel free to call me if no answer just leave a message and I’ll call you back 985-705-3075
Jim Clendenon