Hopefully one that RichardV6 can help me with.

I need to connect to an ignition switched live on my 2010 plus 4. I have fitted a Skytag tracker, just over a year ago, and it has a fused permanent feed connected from the battery. This gives me most of the functions available but to fully access all the options such as being able to track the car live myself and create safe zones when away from home rather than just the one at our house, I need the ignition switched option added. It also gives a five minute check rather than a 20 min update. There isn't a wiring diagram that I can find for these era of plus 4's and I also thought you might know how best to go about it.

Secondly, My parking at home is difficult to say the least, the garage entrance is narrow, very, and to approach it I have to come at an extreme angle through the outside gates and then align with the garage entrance. I have to reverse in as If you drove in you wouldn't be able to manoeuvre it out of the garage again without getting into that trapped scenario! And I have a full HGV licence too! So, I bought a reversing camera which has the guide lines image and I'm hoping that will help as Mrs Sewin really cannot master controlled reversing instructions! so, after all that blarney what I need to know is the best way to wire in the screen element. The camera is simple enough as it is powered via a fused link to the reverse light switch of the car and sends a wireless signal to the screen receiver but I don't want the screen to be live all the time so possibly another switched live connection? I'd also thought that as I don't require the screen/receiver to have any other functions would it be best to take a fused link from the 12v dash power socket via a switch and only have it live when needed. I hope that all makes some sense, I know the car has some sort of can-bus system so I also don't want to upset that!

Any advice greatly appreciated!