Does anyone have a 337 form for the installation of the Artex 345 elt?

Maule only has a drawing on the Installation of the Artex ME406.

They are similar, however a field approval 337 would be needed on the the 345.
Thanks

I feel as though that would not require a field approval since it is a TSO'd piece of equipment. Similar to installing a TSO radio or transponder. Maule doesn't have a drawing that covers each option available on the market yet they are still legal installations.

Yeah, after further digging it is considered a minor alteration. Thanks