Need mfd help

Very Quick Backstory-
Bought a used high mileage Gen2 Base 05

I have no radio or dome lamp or smart key functionality.
No audio displays when trying to use radio- and have zero back lighting on radio or the key fob green lamps/clock display
No blown fuses. I pulled the MFD to do a quick visual inspection and wiggle the boards/ribbon connections.
Nothing that a naked eye can see-

I am replacing the radio to see if this allows for audio - as I think the MFD is waiting for a confirmation from that source to allow further info to be sent -

I have seen Hobbit's posts and am wondering is it just in fact a bum MFD -

I have AC functionality and all the screen functions work except for Audio-

Someone surely has ran into this.

Would I need to SEED the key and car w Tech stream?
It sat w dead batteries for 8 months.

I rebuilt the HV Pack and have a new 12v battery as well. Does everything well except radio/dome/smart key.

Thank you all for the help

 

I am suspect as the car did sit for some time - but in a busy city area- not near many rural fields - doesn't rule out squirrel's though-

I am guessing I will need to roll through the wiring as no blown fuses- but I do not have 12v at any red/blk yellow/blk in acc or drive mode-

Though I do have the basic MFD functions-

I was pulling the underhood fuse blocks out one by one to inspect for any chewed wiring/glue insulation

 

Thank you for the heads up-

 

Update -
Replacing the head unit changed nothing -
The 68 ohm resister works and keeps the hvac and trip info screen happy- but no dash functions
Or audio dome lamp or smart key

So-

I’m guesssing the mfd is my next step -

I’ve saved the oe radio to see if it will also function.