I have a better answer for you now. The early model with the slant back requires you to remove the chassis to change the audio control and switch. With the later model you can remove the front cover and change the control from there.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!