SonataDoctrineORMAdminBundle/Resources/config/audit.xml

<?xml version="1.0" encoding="UTF-8" ?>

<container xmlns="http://symfony.com/schema/dic/services"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>
        <service id="sonata.admin.audit.orm.reader" class="Sonata\DoctrineORMAdminBundle\Model\AuditReader">
            <argument type="service" id="simplethings_entityaudit.reader" on-invalid="ignore" />
        </service>

        <service id="sonata.admin_doctrine_orm.block.audit" class="Sonata\DoctrineORMAdminBundle\Block\AuditBlockService">
            <tag name="sonata.block" />

            <argument>sonata.admin_doctrine_orm.block.audit</argument>
            <argument type="service" id="templating" />
            <argument type="service" id="simplethings_entityaudit.reader" />
        </service>
    </services>
</container>