Since last fall I have had some issues with the trailer tail lamps when I have my trailer hooked to my Commander. I have a 7 way to a 4 way connector(old one and a brand new one) with all lights working but the tail lights. This is with multiple trailers that are known to work with other Dodge vehicles. I have checked all fuses and none are blown unless I missed one in the cab fuse panel. I had tail lights last fall when pulling boat out of the lake and had the wires disconnected but when reconnected the tail lights were out. I did notice that there the previous owner/dealer had quite a bit of electrical tape wrapped around the wires on the Jeep side of the plug. I don't know if this was to protect the wires or if there was previous damage. If any one can help that would be great. Thanks in advance.