That's a sharp looking car in A4. There is something cool about having a one year only or rare colour car. I bet the take rate on A4 was low across the C lineup.
I've seen a lot of A/B's that are A4 with red interiors in 1969, however it doesn't seem common on the large cars. I dont think Dodge offered red interior option in 69, so that leaves Plymouth and Chrysler.
Feel free to post A4 silver car photos here.