Difficulty upgrading Nakamichi Head Unit

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Oct 17, 2013
I've spent 7 hours going over wiring, double and triple checking; no luck getting my new Pioneer AVH-1330NEX to even power on. I found this forum post LX470 Stereo Upgrade with Nakamichi and it has helped but I'm still unable to get the new head unit to power up.

I even returned the original Pioneer head unit I received, thinking it was somehow defective. New one has the same result.

All fuses are good on the LX as well as the fuse on the Pioneer

Am I missing something else that I need to do?
you'd have to explain what you did. which harness, which wires did you cut etc. don't get let down if you forgot to attach or verify the ground.

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