2021 new triton ute, factory fitted tow ball pack, blown fuse on trailer wire harness when picked up, keeps blowing fuses on different trailers but not straight away when connected, led lights on trailers, the last fuse didn't blow but melted all the plastic on the fuse & the fuse holder. when i put the same trailer on another ute which does not have the relays & power supply from the battery like the triton does - absolutely no issues or fuses blowing what so ever. the tail lights & stop light are the only ones playing up, the indicators & reversing light work fine .