I just bought a used vehicle with a JVC KD-SH55 headunit in it and my first time playing around with it netted an "ERR 06" on the display.

I pressed the faceplate-movement button (as this unit has four different faceplate settings) and the faceplate displayed "ERR 06" and dropped to the lowest position. It then cycled at random, closing to display ERR 06 again, and then dropping to the lowered position. What is ERR 06 and what have I done? How can I fix it?

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