sound

I just got a 1970 El Camino last week. Driving it around the neighborhood, I'm hearing a strange grinding noise coming from within the dashboard. The sound seems to be located near the speedo/tach area or perhaps a bit further to the left. Both gauges appear to be functioning correctly. The...

Does anyone know the cheapest place to find a single disc original looking 65 radio? I can only find the 10 disc changer.thanks