I was given the run around at first as well... Try calling West Marine Harrison Twp - 586-465-5401I have a part number that I got from Raymarine customer service, R49085. They told me to contact a local Raymarine distributor. I gave that number to them, they contacted Raymarine to get one and they told them it is no longer available. I will try West Marine and some other local dealers.
I bought mine there last summer so at least they would have a record of it. They could drop ship to a WM near you