Thanks Olivier and Bill. I think I've located the forward transducer pipe, it is in the saloon settee where the second fridge/freezer is located, on the bulkhead just behind the mast support. Is that correct? I still don't know how I get to the actual cable? I'm having trouble sourcing the straight transducers. So far from B&G and Tinley in the UK, they only have the angled ones. Does anybody know a supplier for these straight ones?