i have just taken delivery of a matrice 300 rtk and would like to know if there is a back harness for the smart controler? i have the neck one ? and have a bacl one for my phantom do i/ can i mod that one to do both?

Hi! You might be better off posting your question in the 'products' section of this forum.  That is way more active.    -   https://forum.dji.com/forum-129-1.html