Did you have a shop install your setup or did you do it yourself?
I also read that the Audison Bit DMI is just a rebranded version of the mObridge DA1. Supposedly Helix SDMI25 is the way to go, but I don't think that's available here in the U.S. Apparently, it was assembled in Ukraine, but...
Is that similar to the m0bridge DA1 MOST 25 pre-amp? https://mobridge.us/product/da1-digital-pre-amp-most/
I just looked into the Alpine Optimum 8 DSP amp further and looks like it doesn't have a Toslink optical input. So likely the sdmi 125 or m0bridge DA1 won't work.
I was trying to avoid...
I'm going to replace the OEM speakers with Focal ES 100 KE (K2 component) speakers. In addition, I want to replace the OEM amp with an Alpine PXE-C80-88 (8-channel DSP) amp. However, I am not sure what connections/harnesses I will need or exactly how to wire up the Alpine amp. Any help would...