I was just getting ready to solder the Scosche harness to the one from the after-market unit, but saw something strange...

Take a look at the Bose wiring diagram:
https://www.rx7club.com/interior-exterior-audio-26/bose-wiring-diagram-25090/

From my understanding, the remote turn on wire from the after market unit (blue and white) should connect to '1 J' of the large connector (J2-01). Right? Because that is the cable that triggers the relay to then power the amps.

If I am right, then the Scosche harness I got from Crutchfield isn't correctly wired...Theres no wire coming from the '1 J' pin. Instead, theres a blue wire on the other smaller connector of the Scosche harness that is located on '2 C'...which doesn't go anywhere according the diagram.
-Should I just switch the wire around? Anyone else stumble upon this problem?

 

Yes you are right the scosche adaptor is pinned incorrectly. Just either re-pin the connector or take the wire out and splice it in.

 

the harness is a basic mazda one wired for the base model stereo system not for bose, the harness is correct just not for ur application

 

what was the harness number you bought? I think I might have the same problem as you as well.

Tim

 

CROTCHFIELD harness is incorrect the momment you order it . i recently upgraded because my fd cd unit Kaput and the call to the reps at crotchfield admitted that they are not wired for fd. the hell with them. NOT A PLUG AND PLAY. seriously misleading the consumers. tell me if you have solved the wiring issue by the time you read this... good luck

 

Not a hard fix, just move one of the non-used pins to where you need it. I only had to move one and then everything Bose fired up great.

 

Yep easy enough to move the pin.