I'm hoping someone can identify what this is. I bought a 04 Explorer 4.6. I noticed this box under the dash (driver side fuse box). One wire going out the box is connected to a white wire (main harness going to drive side fuse box). The label says "Itech" or "1tech" not sure. It has the one yellow going to the white on the harness, one black ground and then speaker wire from the "Itech" box routed above the fuse box. I'm not sure where the speaker wire actually goes. The fuse was already blown in the yellow wire so whatever it is obviously wasn't working. It is obviously aftermarket. Can someone help identify?