Ok, so I adapted that tutorial a bit since I'm trying to create a simple SD-CARD layout. I located the Garmin link for the full-screen JCV file & download it. Since the Kenwood DNX9980HD also supports 3D-Mode I also download the 2015.10 version of GMAP3D.IMG & included the latest available version of GMAPDEM.IMG.

My SD-CARD layout now looks like this:
H:\GARMIN
| GMAP3D.IMG
| GMAPDEM.IMG
| GMAPSUPP.IMG
| GMAPTZ.IMG
|
+---\ASR
| 04CNCW74.SRX
| 04CNCW75.ASR
| 04CNCW76.ASR
| 04CNCW77.ASR
| 04CNCW78.ASR
|
+---\JCV
| D3060140A.JCV
|

All .IMG files were 'unlocked' with gimgunlock v0.3 & everything seems to work great *EXCEPT* for the voice recognition, which is really putz'ed. Is there anything special (like unlocking?) that needs to be done to the files in the ASR folder?

Any idea what could be the problem?