Short Survey for a Project

It's more along the lines of turning it on when you leave the car and it keeps the ice from forming on the windshield. So when you come back to your car, you just turn it off.

Ah, yeah that's kind of what I thought when you said an external power source was needed .

So is this an external or internal attachment.

If external, what keeps it from being stolen? What keeps it in place while driving/parked and if it's removable what keeps it in place while it's parked? You mentioned installation so is a hideous mounting bracket needed?
If internal, how do you attach it to the external powersource without cracking a window?

I'm asking because I'm intrigued, not specifically trying to shoot holes through your product so sorry if it comes off that way.