I have a 2006 Silverado 1500 V8 with a 4l60e. I had purchased a 4l80e wire harness from a 2004 Silverado. I have successfully changed everything wiring wise with the addition of a new alternator. I have two plugs left over in the fuse box area. One of the 4l80e wire harness plugs is not part of my trucks previous wire harness, it's a three wire plug with blue tape wrapped around the wires. The other is a two wire plug that is on the outside of the fuse box by the battery, this one was part of the 4l60e harness. Any help would be greatly appreciated!!! Thanks!!!!