So I have been reading through all the MRV threads I can (my brain hurts) and I think I am slowly getting it. My current setup (installed 3-4 years ago) is just 4 lines coming out of the dish into my home with 2 lines going to the R15 and 2 lines going to the HR20. I want to add one more HD DVR box to the mix and add MRV. From what I understand how a new install would look...it would be one line coming from the dish to a SWM module and then a single line to each of the boxes as well as a single coax line running to my internet router. The problem I have is my internet router is located in an inner closet that I have no way to get a coax line to it without doing some serious wall fishing and potential destruction. So, how can I have my setup done? I was told in another thread that I need to make sure and order the ICK as well but then again I have no idea what the ICK is and what it does. I want to make sure I have all my ducks in a row and have a home that will support the setup before I call to schedule anything instead of having an installer show up and then say.....sorry sir, can't make this setup work with what you have here. Damn I hate not fully understanding this technology. Thanks for any advice y'all can offer.