Is there a flash upgrade for the alpine d300?

[gmc typhoon]

It seems that alpine has abandoned this model. This was their flagship piece and it seems that almost all of their new products work with all of their other hu's but this one.

[Ctminime]

flash upgrade?

[gmc typhoon]

yes flash or perhaps a cd update disc. I don't know why alpine could not design this unit to accept updates. It doesn't work with the blackbird, tv tuner, hd radio etc.... It's frustrating if you own one of these.