First of all, apologies if this has already been asked, I did have a quick search through, but couldn't find anything directly relevant.
I need a way to wire a rear B&M Toplight (Line Plus) dynamo light to my daughter's cycle trailer. At the moment, the Toplight is attached to the rear rack of the bike, so I have a standard cable running from the front B&M light which connects using female connectors to the male connectors on the underside of the Toplight.
I have another length of the same cable which I can use for the trailer, which has a female connector to attach to the Toplight, but no connector at the other end (which needs to attach to the wire coming from the front light). I've had a look on SJS cycles (my usual go-to place for small, specialist parts) for the right male connector, but it's not clear to me size/type I need.
Also, am I approaching this the right way, or is there a better way to do it, e.g. is there anything I can do to make the connection more weatherproof, whilst still being able to detach it to remove the trailer from the bike? Worth saying that I'm not that mechanically / electrically competent, so any solution has to be relatively easy to achieve
Thanks in advance for any help.