We had the Essentia installed when we built our home in 2007. Finally one of the wall plates has gone bad. I cannot find the same replacement but I did find the NV-P30 which seems really cool. We do have the CAT5 (about 3 tons of it) running throughout the house. Will the new Nuvo NV-P30 work with our old system? All videos that I watch say that it should just plug and play basically but we have no wifi associated with the Essentia; it was all hard wired originally. Thanks, in advance for your help!