I just pulled my AM radio out of my truck and it is probably the cleanest one I have ever seen (next being NOS). The black paint on the faceplate is flaking off but the chrome is real nice. There is a conversion now that allows you to have AM/FM, AUX in, Bluetooth, all controlled from the original radio knobs. Here's a Thread I started although it might get bumped.
http://67-72chevytrucks.com/vboard/s...d.php?t=662208
Here are some pics of my original radio