Sat Prep wiring on Big Sky3685

[Montana_1742]

Hi
I'm having problems getting my TV in the bedroom working with my Sat receiver. I have the Sat dish wired to the sat prep input on the outside of my 5er. There is also another coax connection on the outside of the 5er but it has no label. I have a wall plate mark Aux/Sat in the front entertainment center which I have feeding the input of my sat receiver. I have a coax cable connected to my Sat receivers output that I removed from the TV jack output located in the entertainment center. The front TV works fine. The only other coax connection in the entertainment center is not labeled. In the bedroom I also have 2 wall plates, 1 marked Sat Prep and the other has no label. I have hooked my TV to both connections but I have no satellite signal. I have asked my Montana dealer how the front and rear tv jacks are wired but they do not know. Any help would be appreciated.

ACBSKB