Getting an addon to work with ECP?

[Viper-SWE- 0]

I've got some sounds declared in my addon's config.cpp (all having the prefix 'cmdr' not to conflict with other addons). They all work fine when playing Flashpoint Resistance, BUT I want the addon to work with the ECP-mod and when I try to play the sounds in ECP I get a "Sound cmdrSound1 not found"-dialog!

I've tried putting the pbo-file in Ofp's addon-dir, ECP's addon-dir and in both at the same time. The sound part of my config looks like this (really there are more sounds...)

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">

class CfgSounds

{

sounds[] = { cmdrSound1 };

class cmdrSound1

{

name = "";

sound[] = {"\cmdraddon\sound\sound1.ogg", db-0, 1.0};

titles[] = {};

};

};

How do I get it to work with ECP?