Not sure about your specific Garmin, but in general, for 12 pin Garmins you need a Garmin 12 to 8 adapter 8-pin Transducer to 12-pin Sounder Adapter Cable with XID | Garmin and then the Minn Kota 8 pin Garmin adapter https://minnkota.johnsonoutdoors.com...4-garmin-8-pin

Again, I don’t know about your specific unit.