> Sorry i forgot to say the remote fob is rf type (2 buttons and small red
> light) 1999 406! Thanks very much for help!
Sounds like mine (I've a 99 406 as well). You remove the ring and there is
a slot that takes a coin. Insert and twist. To put it back together is
a snap fit. That is also how you replace the batteries (two in series).

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Keith Willcocks
(If you can't laugh at life, it ain't worth living!)