Just installed the 4400 pioneer thinking that I could just not connect the parking break wire and think that would solve the video while in motion restriction. (I was wrong, very new to this audio scene)
So now upon searching and watching various videos about switches and relays, I came across this "ebay parking break bypass kit" claiming all you need to do is splice a few wires no relay no switch etc which is quite the opposite to what I have just read.
Here are the instructions and product:
Pioneer Parking Brake Auto Override Bypass AVH P4400BH AVHP4400BH New Models | eBay
Simple 5 Minute Installation Instructions Easy as 1, 2, 3!
1. Connect BLACK wire on module to radios black wire (radio ground wire(-))
2. Connect GREEN wire on module to radios light green wire (parking brake wire(-))
*DO NOT connect ANY WIRES to vehicles parking brake wire*
3. Connect BLUE wire on module to radios blue/white wire (remote amp turn on(+)
*will not interfere with amplifiers connected to this lead*