After two previous 911's and a modified CTS-V I'm back in a Porsche. Picked up a 2014 Panamera S E-Hybrid. The EV thing is totally new to me. Looking to pick up a second cable to charge the vehicle at my office and don't want to drop $1,500 on a Porsche one, when one of the $500 options off Amazon will do. Anyone have any experience with any of the aftermarket cables? I will have access to 220.