I use a hockey-puck style GPS antenna connected to my Laptop. It is located in the cabin and slide under a curtain rail that is attached to the top ceiling in my cabin. It receives just fine there.
Like it was just mentioned, try it in different places and find a location that is out of way. Just a word of minor caution, moisture absorbs frequencies that are used by GPS. So try to make sure that where ever you put the antenna it will not get excessively wet.