Unfortunately, only a big disappointment

Have the Aurora2 bought in January 2014 directly icartech
FM reception with the original Scheibenantene the Mercedes C-Class was rotten !!
I then on the advice of a roof antenna (shark II) installed on the roof.
The result was not much better. The same problems as before. Really strong stations are scanning
not found. I have turned off, otherwise always a "wabbernder" reception AF function.
The cell phone syncronisation sometimes and sometimes not working.
Lately, I had more and more often my phone again with Aurora "Pairing"
The mobile phone has just not recognized
Property me then even a DAB receiver DAB303 (identical to Clarion DAB302E) installed
Has the first weeks also works well.
Then all the saved stations were again lost by DAB303 so rescan
In December then sent the first total failure from DAB303 ==> to icartech and back after 3 weeks
Then 1 month to work again the same error image was present.
I then get on icartech a 5th update, with the result that after 49% of the upload, the device
hanged. (I waited about 60 minutes and then canceled)
I am even electronics technician and I am well known that one a "update" is not to cancel,
since then, the corresponding devices are mostly in an undefined state.
Over time, more and more problems with the device surfaced
Behaved icartech this update sent as email and am excited with what response they react this time