Kenwood DNX9140 Illumination to dim with instruments?

lordsii

Has anyone successfully installed the illumination setup for Kenwood HU to work with 2009 Nismo 370z instruments?

I tried setting it up in three different methods. None of them worked.

First, I connected illumination wire on Kenwood DNX9140 HU (orange/white) to Scosche harness adapter and this harness adapter connects to factory harness adapter (illumination wire basically connected to pin 9 on factory harness adapter). I then set the dimmer to "SYNC" in Kenwood HU setup. This method didnt work.

Second setup, I also hooked up the illumination wire straight to pin 8 (white wire) on factory harness adapter. So both pin 8 and pin 9 on factory harness adapter connected to illumination wire from HU. It didnt work also.

Lastly, I just disconnected (cut off) the orange wire from scosche adapter so that pin 9 is not connected to illumination wire and only pin 8 is. This wasn't successfully either.

Anyone has any idea on how to get it working properly? Thanks much!