Metra Kit install - Heater control lights and Dimmer

I just installed the metra kit and a Pioneer double din deck in my 2004 GT with Bose. I got everything working, including steering wheel wheel controls, rear camera, remote mic......all except the heater control illumination and the radio dimmer. The metra kit has a dimmer wire and a dash light/illumination wire. I hooked up the dimmer wire to the radios dimmer wire and left the other one disconnected because I didn't have anything to hook it to. I must have missed a wire or something, but I cant find it. Any suggestions?