When using the remote in an activity it will switch to the activity device and set screen, then you have to select activities and pick your current activity to use
https://www.crutchfield.com/p_178IRHUB6/Vanguard-Dynamics-IR-HUB-6-KIT.html
use this by connecting repeater receiver to the hub by sticky repeater and use 3.5mm audio cable or ir blasters from vanguard to your equipment.
i use this and it works great