I recently bought another Dish Wally for my RV along with a Pathway X2. Now that I have 2 Wally's, I want to know if my Wally connected to the secondary port of the X2 will update the guide or do I have to connect it to the primary port to get the guide updated. I believe in order to update the software, it must be hooked up to the primary port. Is this true for the guide as well?