without the CD I can guarantee it will only look like a plug as you will have no specs to check.

The description above is really the best i can offer on this for location and this is in my 80, I think your car may be different and how much I do not know.

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'99 S420 - Mommies
'72 280SE 4.5 - looking to breathe life into it
'84 300SD Grey - Sold
'85 300SD Silver - Sold
'78 Ski Nautique