IMHO any xducer wire can be spliced. I've done many!
I stagger the joints, pprovided you already have more than enough run length, so you don't end with one big ball of butt splices. I stagger them at 1", 2" preferably, apart for each connection.
I use dielectric grease inside each butt connections, then coated the ends of the conns with 3M 5200, then all covered by a LONG length of adhesive-lined heatshrink, where the ends cover a section no less than a 3" overlap of good wire.
FWIW I do all 'in bilge' or 'in stern' connections like this and my wiring has been integral ever since - zero issues. And I don't expect any ...