Recently picked a K-Line E8 Southern Pacific Trailing Motorized A Unit from an auction site that had a cruise switch on it. I already had the E8 AA Units, but they didn't have cruise - so I added the ERR Cruise to them. Well, I popped the shell off this new E8 and it has a K-Line cruise board in it (along with the 2 motors and smoke unit). What do I need to purchase to get this running on its own? I originally bought it for parts in the future and I was intrigued that it had a cruise switch, now I want to make it an independent unit! If I wanted to run it behind my current E8, could I plug it's 10 pin wiring harness into without frying anything? Did they put two cruise cards in their E8AAs back in the day?