Car Stereos: Jeep infinity gold turn on signal problem, infinity gold, haynes manual

Question
Hello Sir.

I am replacing a stock radio head unit in a grand cherokee with a spare chrysler am/fm radio that came from a wrecked van of ours.  pleasingly the connectors fit the "new" radio and I can power it and get audio on some headphones using jumpers.  However, I have tried several permutations of connecting the green and red infinity amp control wire to ground on the new radio (on the advice of installdr)but cant get the inifinity amp to turn on.  in the stock hu the turn on wire is connected to the black multi plug and i am not sure where it goes once inside the radio.  maybe to ground but the haynes manual doesn't say.

any help would be most welcome TIA.

Regards
Mike

Answer
Well Mike, According to my research, here is the wiring codes for the Infinity.
Please note that I make no guarantees or assurances that these codes are 100% accurate, so it will be up to you to confirm that these are correct.
Hope it helps!


Left body Harness Conector (14 Pin):
From LEFT to RIGHT. TOP to BOTTOM
#1 - Left Rear Speaker (+)
#2 - Battery Feed
#3 - Left Front Speaker (+)
#4 - Not Used
#5 - Left Rear From Radio (+)
#6 - Left Front from radio (+)
#7 - Left Rear Speaker (-)
#8 - Battery Feed
#9 - Left Front speaker (-)
#10 - Ground
#11 - Ground
#12 - Not Used
#13 - Left Rear from radio (-)
#14 - Left Front from radio (-)

Right Body Harness (10 Pin):
From LEFT to RIGHT, TOP to BOTTOM.
#1 - Right front speaker (+)
#2 - Right front speaker (-)
#3 - Right rear speaker (+)
#4 - Right front from radio (+)
#5 - Right rear from radio (-)
#6 - Right rear from radio (+)
#7 - Not Used
#8 - Radio switched signal feed
#9 - Right rear speaker (-)
#10 - Right front from radio (-)

and during a quick look over of the install instructions for GC's on www.installdr.com it says

If your original radio had a plastic connector containing a single wire plugged into the rear of the radio.
If your original radio or speaker grills were labeled or marked with ‘INFINITY’
Crimp a male tab spade to the new radios
ground wire. Slide it into the female tab spade
connector that had originally snapped into the
rear of the factory radio.
TIP:
Crimp a male tab spade to the new radios
ground wire. Slide it into the female tab spade
connector that had originally snapped into the
rear of the factory radio to activate the ‘Infinity’
sound system.