I found 1 problem, your wire #22 (green-purple) which is a battery wire is on J4 pin 5 which is a N/C. All of the top pins on J4 5,6,7,8 are all N/C. You don't need to put any wires on those.
All of your other connections check out.
And of course the one you found (speed wire).
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2006 GT Tungsten Grey 5 spd, Xcal2/Pipeline CAI, Powerhouse tune. Spoiler delete. Front Speakers:Infinity 6812CF;Blaupunkt GTc652. Rear:Infinity Kappa 682.7CF. H/U:Alpine CDA-9885. Alpine MRP-F250 amp. Sequentials. President of the Splash guard registry. On Deck: Motoblue UDP's.
I found 1 problem, your wire #22 (green-purple) which is a battery wire is on J4 pin 5 which is a N/C. All of the top pins on J4 5,6,7,8 are all N/C. You don't need to put any wires on those.
All of your other connections check out.
And of course the one you found (speed wire).
It seems weird to me.. because it is wires on all of those pins on J4 in my car.. are they just dead ends, or does anyone know where they go?
So if you look at the diagram posted above here.. which cords go to the subs?
I have figured out the speakers, battery, grounding..
I am looking for the ignition wire, is this Pin #2 (run/access), or pin #15 start?
Also where is the dimmer control wire?
I have the kenwood DNX8120 wiring diagram in front of me, and there is so many wires on there that i cannot find on my Shaker 1000 wiring diagram..
I am about to go out in my car and trace each wire to see where they go.