In the '91 190E 2.3 US model, the passenger footwell is where the factory alarm module and I believe the audio amp reside. In ours, neither option was installed, so there is simply a plug, mounting pemnuts, and a cover plate to hide it. I don't recall if it is similar.
Steve
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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7
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