so i'm tring to install a sony cdx-f7705x into a 2000 f-150..but the deck has 3 blue wires..all unlabelled, does anyone know what those wires are for..or where i can find a diagram that will tell me . thanx.

http://www.xplodsony.com/files/manuals//CDX-F7705X_Install_Manual.pdf


Got that from the Xplod website. Good luck!