I'm looking into adapting my own but they will look factory supplied when i've finished, i.e plastic sort of bump affect just like the rest of the door pocket. If I could get them made up quick enough who else would be interested in this, either on a pair of door pockets supplied from me or you send your own to me for adaption. The only thing you would need to do is run speaker cable into doors (so easy to do) and make a hole behind where the speaker sits in the door card, oh and obviously remove/add door pockets. The cost is yet to be determined but will be a bargain compared to Audioscape ones and I would probably charge cost of materials + a little for my work, oh and p+p (actual cost not stupidly inflated p+p)
This is only a maybe and depends on sourcing the right materials (definitely available in the USA but maybe harder to find over here).
They won't be as solid as Audioscape ones but for £180 you expect them to be solid as those don't use the existing door pockets.
Let me know what you think.