I recently bought an inverter and now need to find a place for it. The dimensions: 9-1/4" L x 5-1/4" W x 2-1/2" H. 12V Power Inverter - 1500 Watts Max
I was thinking upside down inside my instatrunk. Also thinking against the rear tire well. I'm not concerned about airflow. If it will be used (if ever) the door would be open.
I was also thinking under the hood. First option would be above the battery with access to the battery terminals and airflow under the inverter. Second is to remove the air box and put an open element in it. Where the box is would be open and allow a spot to be installed.