unfortunately you can not interface with the oem hard drive to record video. i have confirmed with a couple of audio/video companies that this will not work. you would have to do what i said earlier, split the vido signal and connect to another hard drive or computer. and bypass the system so the camera stays on all the time.
---------- Post added at 02:36 PM ---------- Previous post was at 01:40 PM ----------
update... the ford realership i m going to buy my truck from said they will try to get the wiring schematics for me. they are aware of me being an installer. i told them that i want the camera's but not the nav, and that i am going to rip out the audio/video system and replace it with my own stuff, and they re pretty much willing to do what it takes to sell me a truck. so hopefully they can get me that info. i will keep updating as i get new info
---------- Post added at 02:36 PM ---------- Previous post was at 01:40 PM ----------
update... the ford realership i m going to buy my truck from said they will try to get the wiring schematics for me. they are aware of me being an installer. i told them that i want the camera's but not the nav, and that i am going to rip out the audio/video system and replace it with my own stuff, and they re pretty much willing to do what it takes to sell me a truck. so hopefully they can get me that info. i will keep updating as i get new info