I have a 2007 Southwind 35A that probably has the same unit, I did investigate the Satellite Antenna in 2013 when I bought my Motorhome, it is an very early version of a King unit (name is written on the outside of dome on the roof). It required code upgrading and etc, while I spent my whole career in High Technology it would have been somewhat difficult and was not worth the effort, I will replace it in the future as the newer units are much better and cost around $350.