Yesterday evening I made a similar conversion for a friend of mine on a Sanwa Super Exzes Plus.
My assignment was only to discover the electrical connection between the "hack module" and the standard Sanwa module connector.
We used an external plug connected to the module pins because we prefer to make something that it is possible to use without modifications to the radio.
Looking at the backward of the radio the pinout of the module from left to right is:
1 PPM
2 POSITIVE
3 NOT USED
4 NEGATIVE
5 ANTENNA
6 NOT USED
7 NOT USED
8 NOT USED
We tested the radio only on the bench, however seems to work flawlessy.
Here's some pictures
.
Bye
Ema