I have a different GyroScope board then what is sold as replacement.

I purchased a full repair kit. My original gyro board has an extra blue/green whire soldered to it, this connects to a second wire coming from the battery. Am I safe to replace this board with the new gyro that does not have this plug and not use the second battery wire.

Does anyone know what this wire is for?

Picture of my board here...

http://i63.tinypic.com/r750dk.jpg