This unit is in perfect shape, I replaced this with a unit that has Bluetooth as I am really a gadget guy at heart. After replacing it with a new one I kept this in case the new one failed. Its been a couple years now, so its time to sell it. This is a Hardwired Unit that was installed Inside my electrical bay away from the elements so it looks like new. It does not come with wires required to hook it up. But that said, you probably already have the cord that connects to your transfer switch, just take those off and connect them to the LINE (top) of the device. Then you need 4 short pieces of wires to attach to the LOAD side and hook back up to the Transfer Switch. Your motorhome/trailer may be very different than mine. If you are not comfortable hooking this up call a qualified Electrician! It is listed on eBay. Here is the link to purchase it. https://www.ebay.com/itm/225976548392