Play 2 (custom) sounds on trigger

Configuration
1

I would like to play 2 custom sounds once an automation triggers but cant get it to work.
First when the automation triggers i would like to play the default alert sound on my iphone. After that i would like a clock to start ticking to alert me of the time i have to diarm the alarm.

This is what i have so far:

- alias: 'Manual - Door sensor trigger alarm'                                                                                                  
  trigger:
    - platform: state
      entity_id: group.door_sensors
      from: "off"
      to: 'on'

  condition:     
    condition: template
    value_template: "{{states('alarm_control_panel.home_alarm') != 'disarmed'}}"

  action:
    - service: alarm_control_panel.alarm_trigger
      entity_id: alarm_control_panel.home_alarm  

    - service: notify.<my mobile notification group>
      data_template:
        title: 'Alarm'
        message: >
          {% for entity in trigger.to_state.attributes.entity_id %}
            {% if states(entity) == 'on' %}
              {{ state_attr(entity, 'friendly_name')}} is open
          Alarm pending - disarm within 30 seconds
             {% endif %}
          {% endfor %}
        data:
          push:
            sound:
              name: "30secClock.wav"
              critical: 1
              volume: 1
          actions:
          - action: URI
            title: Open dashboard
            uri: /lovelace-alarm/default_view
          - action: DISABLE_ALARM
            title: Disarm alarm

    - wait_for_trigger:
        - platform: event
          event_type: mobile_app_notification_action
          event_data:
            action: DISABLE_ALARM
      continue_on_timeout: false
    - service: alarm_control_panel.alarm_disarm
      target:
        entity_id: alarm_control_panel.home_alarm
      data:
        code: 'xxxx'

This works and if i change the 30secClock.wav to "default " the sound changes. How to combine this so i first get default sound and the a ticking clock?

Thanks for thinking along with me.

2

Shameless bump