If it is parked in the drive why would you
need to see inside the car?
I would think a view from the outside would
be better.If you need to see it at all
times and at work I could understand a set
up for in the car. Outside cam and censor
set up to record with alarm inside would be
more helpful. As to wiring a cam in the car
I don’t agree with some of the ways done
here. I told my son about amps,volts used
but he went ahead wiring his sound system
up and had to replace his battery and
alternator because of to much power draw
after it burned up..It might not go bad
today but you can figure if not done
correct you won’t get the full life of the
units in use.
2pyrs
Easy boy. Have a little imagination. You don't need to understand why he needed to watch his car by wireless video camera. He says he needs to so he needs to.
The way he solved it works.
You mentioned that you told your son about amps, volts used for his sound system. Based on your short blurp about general electrical terms, I'm not sure you have a deep grasp of the electrical subject. Now while unfortunately for your son, his install did damage to his car, and while this did coincide with your warnings to him about making changes, it doesn't make you right. And it definately doesn't make you an expert at warning others about making changes to electrical systems.
The single most important point here is the camera draws 80 milliamps of power. at 12 volts that is 0.96Watts. That is tiny! To put it to point. Almost all aftermarket stereos today boast at least 50W total RMS power. That is just to the speakers. The unit's usually draw a similar amount. So that makes an estimated - whopping 100W at decent volume. We are talking over 100x more power drawn by your son's system.
Case in point. I did mod my own sound system in my car. I have a new deck running 80 Watts total RMS and a 200W subwoofer. I can listen to my car stereo at decent volume with the car off for over an hour WITHOUT Draining the battery (no mods to my alternator or battery setup - and no damage either I might add). To extrapolate this example to the camera. I could apparently run it for 100 hours without draining the battery.
Please be helpful next time and give the poster a shadow of a doubt that his usage might actually be warranted and that what he did might be technically safe not to mention reasonably well implemented.