I did not want a wire from my radio to my sim usb. There were a few solutions for this but most were bulky and clumsy to use. I got a few parts and put one together myself. Saw the idea a few places, but wanted to write up how I did it.
We need to prep the receiver for use with the USB dongle. We need to activate the PPM on the receiver by jumping the the PPM pads on the receiver, with a wire or a solder jump. (may be a little different depending on the mini receiver)
Next prep the USB board either take off the wire plug or leave it on and use the connections points. It is easier to remove the connector and it give you more room. Connect the pins as shown. (may be a little different depending on the mini receiver)
Once the connections are made tuck everything in nicely. Before putting the case back on I would bind it to a model and test operation.
Now you can use it. Enjoy.