Then you can go for this converter box instead - it has 4 x HDMI inputs & a remote... so you can connect both the DSTV decoder & the Android Streaming Box to it - it does have a remote as well - all the other input & output connections remain as per my amended diagram below:
View attachment 1954289
4x1 (4 input ports) 4k HDR HDMI Switch with ARC Extractor with audio Outputs (Toslink & 3.5mm Audio Jack) Switch has been tested with HDPVR 2P, HDPVR Pace and
www.hdcabling.co.za
Another alternative - this converter box is the same type as the one originally posted by Mike in
#6 above - but this model has 2 x HDMI input ports - it also comes with a remote - otherwise all other features are identical...
View attachment 1954294
2x1 (2 input ports) 4k UltraHD HDMI Switch w/Audio ARC Extractor (SPDIF Toslink/Coaxial & RCA Audio Jacks) Upgrade your home entertainment setup with the
www.hdcabling.co.za
View attachment 1954291
P.S.: If possible, post a picture of the rear of the Hi-Fi System, detailing its make & model, as well all of its various input & output connection ports as well...