A user of RadioDJ has written a plugin for RadioDJ which enables the use of VST plugins.
There are some basic instructions on installing the Plugin into RadioDJ Here
If the download from the forum isn’t working try this Link
Note: This plugin may not work with the next version of RadioDJ.
Hence why I’ve listed it as a v1.8.2 plugin for the time being If I see an upgraded version I will freshen up this post.
We hope you find this plugin useful.