I've got a 2011 Chrysler 430N RHB OEM nav/media system. Thus far I've had no luck with the downloaded maps and ASR, and JCV files.

My system has the "OEM City Navigator North America + Mexico NT 20111" I've downgraded my head unit software from 50.XX to 33.XX, I've read this is a must.

I'm trying to update to CN North America NT 2015.20. Thus far I only get the map update provided is not compatible with your navigation system. I've gotten my maps from gpspower. I have also tried my Zumo 660 but didn't know if the maps would be compatible, I've tried though and failed. This is the file structure I'm using on the USB stick;

<DIR> Garmin
gmapprom.img
gmaptz.img
2 File(s) 2,368,666,624 bytes

Garmin\ASR
04CS1KAO.srx
04CS1KAP.asr
04CS1KAQ.asr
04CS1KAR.asr
4 File(s) 689,779,482 bytes

Garmin\JCV
D3060150A.JCV
1 File(s) 854,876,229 bytes

I just don't get it... what am I missing here? Do you think it's the maps? I went ahead and ordered a Garmin 3590LMT yesterday which will arrive in a few days. From other information I've read this is a good fit for files.

Any help/guidance would be most appreciated.

Thank you.