Coax Plug Adapter Cable with 6 inch of 16 awg wire with SAE connector. For Plugging a Coax Heat-troller to Clothing with an SAE Connector. This will also work as an adapter on the battery tender to a coax battery harness.
Warning: If you are going to do this then swap the fuse in the Tender cable with the one you received with the Heat-troller battery harness, so it will handle the draw. You need at least 15A fuse in the battery harness.