I currently have the AVIC Z140BH but should be receiving the 8100NEX tomorrow. I wanted to see if the Power cables are the same for both unites? If not does someone already have the parking break hack?

Bypass is on first post in this section:

http://avic411.com/index.php?/topic/38589-official-avic-nex-bypass-avic-units-only/

Harness may be the same, I don't think it changed, I would verify the wire locations when you get new one.