[X5 E53 NAV+DSP] EONON GA7166 INSTALLED...but NO SOUND

[xbimma]

Folks,

Can someone tell what could have possibly gone wrong here. I stumbled on the 80/20 rule, and in this case the sound is 20 and took up 80% of install time. I am no expert in electronics or wiring, thankfully my brother in law helped out with the wiring harness. After completing all the connections I still do not have audio output and it is the case for all audio source including Radio, Bluetooth, CD. Everything else works including wheel controls. Though I have not fully tested GPS w/o WIFI. I perused the infamous Eonon "Hate" thread that turned out into a great Eonon DIY, but could not find the magic bullet in there (I probably missed it): https://xoutpost.com/bmw-sav-forums/...on-radios.html

My setup:
EONON GA7166 with Android 6 aka Mashmallow
2006 X5 4.8is with On-board monitor + DSP
See details in attached PDF

I instant chatted with Eonon support Saturday night and they transferred the case to a tech that is not available until Monday morning (guess they are opening anytime now)
What in the world I am doing wrong?