Thanks Gilly, I found the owner of a '99 who says he has it and he was told it was option 16 on the car's system. I was at the dealer and they said it was not available for mine ('98), but I'll try again now that I know the option number. I hope it is available in the '98's. I'll keep you posted with what I find out...thanks again

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'02 C240
'00 LR Discovery
'72 280SE
'67 280SL

---past---

'79 280E sold (RIP)
'86 300E sold
'87 300SDL sold
'90 Laforza sold
'95 320SE sold
'98 ML 320 (sold)