I thought it was possible to do this by using Hijack, I've got my Pioneer steering wheel remote working this way. You can find out about Hijack by looking at the FAQ.
It uses a feature called ir_translate, you can map buttons on the Blaupunkt remote to buttons and function on the riocar.

Good luck


Edited by marria01 (26/06/2002 13:04)
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Cheers,

Andy M