Faceplate Kit For Retrosound Radio, Blaupunkt Type; Chrome Trapezoid. Shaft holes are approx. 5-1/8" apart on center. Opening is 3-3/4" wide and 1-1/2" tall.Blaupunkt-Type Faceplate Kit. Series I E-Types were fitted with a variety of radios, but a common fitment was a Blaupunkt unit with a trapezoidal, ribbed, faceplate. The folks at Retrosound now have an excellent match for this faceplate that of course fits the Retrosound radios.