Hi Charlie!
I can't give you the "brand" but there is at least one company that makes a remote for the garage door that fits in the cigarette lighter socket. You'll have to search the web for it, but it should pop up from one of the search engines. I believe it was expensive though... something like $80 for the "lighter" and another $20 for the attachement to your existing door opener. Probably not cost effective but it's the only alternative I've ever seen....
Have a good one!

[ 12-10-2001: Message edited by: Hasbro ]
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Hasbro
'70 Dodge Challenger R/T SE 440/4spd
'03 Escalade White, AWD, Nav, loaded!