How to get power source for security system?

[wwbear]

I am going to install an additonal automatic anti-theft security system to my Versa. But the system would need a 12V supply.

Where and how could I tape the power from (power for audio, fuse box,....)?

I am new to this stuff but I would want to try DIY instead of paid and knowing nothing to my car. It is very grateful if any would could post pic also. Thanks a lot.

[CodeRed]

It it needs a constant +12v you could tap into the fuse box, I think the dome light is a constant 12v. There is also a constant 12v for the stereo. Or you could run a wire through the firewall through the grommet by the driver foot well to the battery.

And if you aren't sure this is something that should be left to a professional.

[wwbear]

Thanks. I think the most easy option would be the constant 12V for stereo. I would also want to try fuse box since it should be the most proper approach. However, I didn't have experience for working on the fuse box.

If someone could post some picture, it would be great help.

[kc5f]

Depending on the model and accessories, some fuse locations are empty. In my case, I used one marked in the service manual for "Heated Mirror Relay" for my ham radio install. (Each side of the line is individually fused just below the picture.)

[CodeRed]

The heated mirror relay is switched on the ignition right? He needs a constant 12v

[kc5f]

Maybe I'm reading the diagram wrong, but I do get constant power from that location.