Question about head unit replacement (1 Viewer)

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Joined
Oct 10, 2016
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Location
Middle Tennessee
Hey folks, I need some help with my new HU.
I got an android unit on ebay and will bypass the factory amp.
I can't figure out some of the connections. Why 2 illumination cables on the nakamichi? which one should I use?
what is Back In in the new unit? The reverse camera control? Should it go to the + of the reverse light ?
Brake? Is that to enable the video while you're at full stop? +12V to bypass it?
Which cable goes to Battery+? +B or +B2?
What in the world is Key 1 on the new HU?

See the picture below and comment. Thank you

15194261243941744486559.jpg
 
Last edited:
Did you wiggle it? Sometimes wiggling it helps.

:rofl:
 

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