Did the siding fit close when it was installed? If so, then the wiring exiting the back of the enclosure is the support.

Larry C

Oh boy! And I bet the owner is looking for a quick and cheap fix involving plumbers tape and some deck screws.

The 'quick & cheap fix'? This situation would result in a violation notice, an unsafe structure posting, and a call to the utility for an immediate disconnect at the source of power. That results in a 'quick fix', albeit not cheap, but more economical then a possible fire or injury, or worse.