The RP-440WC was on sale, so I decided I could just mod it into a "RP-440C" I might have glossed over the totally different drivers and tweeter...
The cross over for this seems to be pre amp, and each speaker has its own amp feed. While the wireless audio receiver is "proprietary" so no diagrams are available to put a pre-amp signal straight into it(even if I could find a unencrypted audio into the amp is also powered by that board).
I have abandoned trying to reuse any circuitry existing on the RP-440WC, and with the specs from the speaker sheet "Tapered array 200 Hz (2 outer woofers), 1.8 kHz (2 inner woofers)"
I was going to throw a low pass(?) 200hz,1.8khz crossover together for the 2\2 woofers and wing the tweeter...
EDIT: I'm also looking at using a RF-3 crossover as a base, it seems to have the same sized drivers and tweeters.