trying to add a second driving station need help

[spearjunky]

Need help trying to hook up two shift controls, I have a 704 for my lower station and a 703 upper i need to figure out how to hook the two together, and does the 704 have to go first or can I switch them around

[rodbolt17]

you simply cant.
you cannot use either the 703 or the 704 as twin station boxes.
you either have to go with electronic or a morse SR type box set.

[boscoe99]

Or, if you can find one, you can install a Yamaha dual station 704 control box set up.

[rodbolt17]

we actually have a few of the now discontinued twin station 704 box's and actuators.

while the system worked it was rather pricey.