How to install when there is no attic?

Is hollow behind it all the way up. I usually fish it from bottom. Soffit can carefully be removed to gain access to top of vinyl corner.

I thought it was but wasn't sure, i need to get a better fish mine is to stiff.
 
Mounting the camera is easy in that scenario. I piece of aluminum stock and you wiggle it in to align with the soffit.


Revisiting this as the holidays approach,

I did the flat stock aluminum painted to match and it works great. But i am wondering how do you attach the Junction Box to the flat stock aluminum?
 
Many just shove all the cable up into the soffit.

But you could also drill small holes thru the aluminum and then a screw and bolt.
 
Many just shove all the cable up into the soffit.

But you could also drill small holes thru the aluminum and then a screw and bolt.

My issue is once the flat aluminum stock is in place (wedged in) you can't get behind it to use a screw/bolt.

Hope that makes sense.
 
I have been using one wide one, but did actually test putting the mini-PTZ up using two and it worked surprisingly well.

Yeah if you have access to rivets, that is the way to go.