installing an aftermarket unit is NOT labor intensive. You can either glue the new transducer to the bottom of your hull OR mount it to the outside (more accurate). The Hummingbird ones fit into a 3" gauge pod and are very nice units. Very simple to install and I've got them on all my boats and skis. Only ever had one fail, and that was (I think) because I had it mounted flat, and water would pool and sit on top of the buttons. Anyway, you can find them for around $100. Also, I have an extra transducer for said unit. Post a picture of the connector and I'll tell you if mine matches. I'm not sure if your gauge is stand-alone or integrated into the cluster, but if it's stand-alone, seadoo may very well have contracted with a separate company to make their transducers. If there's a separate gauge, pop it out and see if you can see a brand name on it. My 04 Speedster 200 has a 3" hole for one, but that boat is going up for sale soon as I can finish it.