We had been struggling keeping our towed vehicle battery from being discharged while driving from place to place. In this video we install a charge line kit to charge the towed vehicle using the RV as our power source. We also install a diode kit to resolve an issue with the charge line backfeeding to the rest of the electrical system.
Thank you! Good luck with your Greyhawk. We love ours! We added a Roadmaster steering stabilizer and it made a huge difference. So if you seem to be all over the road, you might take a look at adding one. As you saw in the video, we have the Roadmaster Nighthawk tow bar and we really like it. It takes us about five minutes to get our Jeep hooked up and ready to go. Safe travels!