Depending on how much of a lunatic you are
Get hold of a TDR ,measure the length of the cable , you may need to stick on a 100m before attaching that one might give distance for you to look at
Like I said it's only if your bored and a lunatic and so on
With the distance it can only be so far hahaha
Otherwise tone tracer might help , but switch off all electrics at fuse box before trying to tone trace it