did you notice any difference with the cooling performance? I am just wondering if it maybe runs a little hotter how much of a difference blocking the airflow might have
Not that you would harm anything, but blocking access to your battery power distribution box, that also has fuses would create extra work if you had to check a fuse. 8 inches from where you mounted the wireless relay is a factory mounting position on the firewall, which doesn't block access to anything. Why noy use the factory location if available?