ThanksI was able to pull the temp wire with no problem; pulled a heavy piece of monofilament behind it which I used to pull the new transducer cable. Pulled the old GPS cable out of the rear vent the same way. None of these wires offered much resistance to pulling. the 332c transducer cable, however is not budging, like it is hung on something. Do you think a split piece of CPVC pushed from the rear vent might free it up?jw