A location to the rear of the front hatch is a good place but remember if you put your trolley in the front hatch you need to leave enough space so it does not catch your transducer
The hull is marked and now really give it a good roughing up with some course sandpaper all over this will help the silicone grip and not fall off
Next up tidying all the wires these are mostly from the transducer garmin use a small waterproof plug in the middle of the cable but they are still quite long so need tidying up
All the wires were loosely wrapped around the scupper hole inserts and cable tied in to position don’t wrap these cables tightly or they could damage your scupper hole inserts keep them loose but tidy
With the hull sanded and wires tidied remove the nozzle from the silicone using the nozzle can introduce air bubbles in the sealant you want a big smooth air free blob there is about half a tube here
The transducer head is then carefully pressed in to place do not rotate it as you are fitting it just press it straight down rotating the transducer may result in small air bubbles which will impair your transducers accuracy
A 2lbs fishing bell weight is then put on top of the transducer and the silicone is left to set for 24 hours to complete the job