Step 9: Solder Leads to the Bluetooth Module
Solder a length of wire between the CTS-I and RTS-O pins of the BlueSMiRF to short them. These are used for hardware flow control, which we don't need.
Cut four wires (or better yet, a ribbon cable) and solder them to the VCC, GND, TX-O and RX-I pins of the BlueSMiRF. Again, you can leave these long and cut them to size later, when you get an idea for how much space you are working with.