There used to be a plugin called RM-X or something, but I can't find it anymore.
By the above I'll assume that RM-X worked well for you before, so I'll now point you to it and disregard the rest of your post. Easier that way.
You probably couldn't find it again because the Winamp.com search database is completely borked now, and has been for awhile.
Anyway... grab it directly from the author's site
Since this references a 3rd-party authored plugin, moving this now from Winamp Tech Support to Winamp Discussion