SI has to "see" left and right. Humminbird's SI covers from the water's surface to past vertical under the transducer on both sides.
You can try it in that location, since you have a jackplate that may give you the clearance you need.
If you have too much blockage, you can use two SI transducers, one on each pod and connect them to the display with the AS SILR Y cable. That would use the left side SI on the left transducer and right side SI/2D/Temp on the right side SI transducer.
Humminbird Helix 12 CHIRP SI, 1198c SI, 1198c SI, ONIX 10 SI NT, Helix 7 CHIRP SI GPS G2, SOLIX 12 SI, 360, RC-1