Shredbet

Hey guys, my first post but I’ve been enjoying the forum for awhile now. I own an 03 Avalanche that had a Faria Pilot 1, and of course it died. I bought a new Faria depth/water air temp gauge and got it all wired up today (I think correctly) and the water temp is reading 182 degrees. I finally found on here that it might not be compatible with the factory paddle wheel/water temp sensor. I was unable to get any manufacturer info from it either. If this is true has anyone found a work around yet. The last post I found was in 2012 without a fix. Also anybody know what the 2 wires are for on top of the center ballast tank? Mine look as though they have never been hooked up. Thanks guys!