I saw a thread yesterday that is now closed about not being able to get a wrist macro to work.

I was working on my macros last night and today (for the first time) and with much trial and error have found a way to equip all my necessary slots.

While normal /equip wrist "__" and /equip ear(s) "___" did not work, what ended up working was, ridiculously, this:

/equip L.wrist "Item"

and

/equip L.ear "Item"

(even though there is only one ear slot and one wrist slot)

Hope this helps.