So here is what we did and it didn't work
Three wires from old Garmin electronics
Red White Green and two wires not used.
Suspect that Garmin
ran 200/77 dual beam using Ova Transducer
but website for Ova indicates many of there Transducer
New Striker 4 electronics
have four wires Red White Black and shield.
Red to red
White to white
Black to pin with previous green
Shield wire not used
Striker 4 says no Transducer found under 200/77 or 200/50 setting.
We spent 1 hour on phone
with technical support to no avail. They suggest we call air max and they had no idea.
Ova was installed in Thailand
and is made in China
and we cannot access Transducer we just see cable with their logo.
Disconnect black and wire shield where green was.
Swap red and white.
Thanks in advance best for ideas.