We've pulled the trigger on a new 2016 Axis 25.2. Excitement abounds in our home! The old rv has a round 4 pin connector. Is there an adapter I can use for the toad and connecting coil to the 7 pin connector on the new rv or do I have to rewire the toad and buy a new 7 pin coiled connector cable? Mo money, mo money! Thanks for you help.