We are using the new XSCP as well, but it's working fine with the adapters and old cable. We did not install the AGS though, so maybe that would require us to have the new cable? We just brought it back into Holland Motorhome because somethings were not working on the generator. I think I'll make a post so others don't run into the same problem. From what I gather, there's two inputs for power and two outputs. Our's being a 2002, only had one output, causing the generator and a few plugs on that same circuit not to work on shore power and generator. So with the help of Xantrex, they added a jumper on the 'out' side and now we're in business!
Thank you for getting back to me on the cable question!