Zee Horvat

2009 RDX No NAV, 140K miles.

Blank HVAC/Radio Display. HVAC works but no Radio. Found similar post from couple of years ago, but no solution. I have checked all the fuses and tried reset via battery disconnect.

I have no wiring diagram, but I am curious about connection between RADIO and DISPLAY.

Any suggestion are welcome,
Zee

Zee Horvat

After some debugging, my issue ended up being a radio/CD unit.

Battery power via key switch and fuses 12V -> CD unit (converts 12v into 5v) -> radio control unit (where all the radio buttons are) -> screen

Picked up used radio on ebay for $50. BTW my original 09 part number was 39101-STK-A021-M1 which is interchangeable with 39101-STK-A012-M1.

To get new radio code you need VIN (donor car) and CD serial # (from new unit):

https://radio-navicode.acura.com/

Hopefully it helps someone else.

Zee

CSmoney28

Thanks for the information sorry that no one got to you.