This is not the radio equipment I 'm speaking about, but the fixation mount in the middle of the front seats.
Laci Horvath, owner of a Sugga, of course, asked me to describe this plate. I made drawings and pictures, helpful to build one. See here under.
Example of pictures
Scanned radio data sheet on the plate :
If you're interested in, please ask by Email. The file in 75Mo.