Wiring Access 2006 Kia Sedona/Carnival

Hi, I am looking for a place to run a video output from a front mounted (under number plate) camera through the engine bay into the cabin, I've read there is a loom on one side with a large grommet in which I can poke a hole but I can't see where it is (don't know which side either, I am in Australia so it is right hand drive), the cable has a normal RCA plug as used on AV equipment, I have a clip-on LCD rear vision mirror with 2 AV in and I will be able to see rearwards as well. The rear camera is powered by the reversing lights and the front by switching on the parking lights, I will use power for the screen from my overhead console and can switch off the screen with a button included in the mirror and I can change from one camera to the other by selecting AV1 or AV2. When the power is off the mirror becomes a normal mirror although a little dark, like good for anti-glare from behind.

Cheers