I've never tried to setup a directv system before so looking for educated people to point me in the right direction. I have an older 4 line dish setup at a cabin I bought. It came with the property and was in use by former owner. I have a hd box without a built in power inserter that I would like to use out at cabin a couple weeks a year. It will be just the one box. Can I buy a power inserter and hook it up to one of the coax cables and power the dish this way or do I need something else... I apologize if I've left anything out but I'm not familiar with how it all works.