Soldering onto XbeeShield to get access to pin6 (rssi pin) ok? or an alternative

Hey guys, I require the rssi value from two connected xbees and I was wondering if it's okay to solder a wire onto the xbee shield pin 6, and feed it back into an arduino digital pin?. I have the older xbee shield (http://arduino.cc/en/Main/ArduinoXbeeShield) and not the one with the SD card support.

Is there any other way of obtaining the rssi value? I've read about using API mode but not entirely sure of how I would go about doing that :roll_eyes:. Also I'm using xbee series 2 wired.

Thanks for your help :slight_smile: