Kenwood Dnx521Dab Bluetooth Audio Streaming

Hi,

Im new to this forum, i'm looking for a replacement for my Bolero head unit. The kenwood ones seems the best based on what i've been reading. I have a good price for a new DNX521DAB but wanted to confirm these things firt

The features i am after are
>Parking Camera Input which im looking to retrofit myself
> Bluetooth for audio streaming via spotify and phone calls on my LG G3
 

I have read that the audio streaming isnt possible, but wasnt sure if it had been added in a firmware upgrade.

Can you advise me on whether the DNX521DAB is what im looking for or should i go for the DNX525 instead?

Thanks,

Matt