I am trying to install a Helix 10 Si G2n Mega transducer on an aluminum SeaArk ZX180. I thought about installing the transducer above the drain plug in front of the lower unit if I have enough clearance. I know I will not get on plane readings, however, I will address that with another transducer where I have one installed now. Will the drain plug effect my si or my di readings? Is this a good location? Any better solutions?
Attached are some pictures of a zx180 that looks like mine. It is not my boat, but my hull is the same hull.