Came up with a neat solution for powering my cooling seat pad that might work for some others here. Previously I installed a jack next to my seat to plug my heated gear (Gerbing) into. I don't have a dedicated heated gear controller. I control it with a Neutrino Aurora. I found a combination of adapters on Amazon that lets me plug the seat pad into the heated gear connector. Now I can control the seat pad from the Neutrino during the summer with no new wiring or jacks and I don't have to take up one of the slings factory lighter sockets.
EDIT: Link to the socket. Link to the adapter. (I couldn't find a socket with a 5.5mmx2.5mm plug, hence the adapter.)