Ring options for Internal Garage

Hi. First Post. I have Ring Cams & Doorbel but want to protesct inside garage. I have floodlight cam outside garage but nothing to stop scum forcing door and getting in at night as even though motion and light are activated the siren will not go off as its manual and notifications are off at night. Thought about a basic separate smart sensor/siren but cannot find what I need. Would ideally like Alexa integration also. I have seen some forum where a guy has coded Smartthings/IFTTT ? to activate Ring Siren from non-Ring sensor but that is past my capabilities. Any suggestions ? I dont really want to get the Ring alarm. Even then the siren is indoors so not much of a deterrent. Thanks peeps ! Ring options for Internal Garage