Just got the new harness in the mail and can confirm that the "ram low power cord" has the LF, RF, LR, RR speakers where as the "The ram with the grand cherokee power line" only has LR, RR speakers. I want to clarify, the "ram with grand cherokee..." based off of a stock diagram has only the rear right, and rear left speakers, however the pin out could be switched once it gets to the new headunit and that could be getting used as front's only. Not too sure but based off of the diagram below which is correct that is the pinout from the factory harness to the new harness. Could be a simple error at the plant wherever all of these units are turned out and they labeled them wrong. If you have an issue where the audio is only coming out of the front speakers OR you cannot "fade" front and rear contact phoenix radio about getting the "ram low power cord" harness, OR modify your existing harness (explanation and pictures should help for anyone who wants to modify the harness themselves)
Looking at the factory harness connector the larger male terminals should be on the right side (label facing up) you'll notice the two bottom rows, those are the speaker outputs, the "ram with grand cherokee power line" only has 4 pins (RF-, RL+, RR-, LR+). See the diagram below for reference of these (it is reversed compared to how I am telling you to look at the connector, they are show it to you with the LARGE pins in the upper left corner. These wires then go to the smaller black connector on the harness which plugs into the new radio. Looking at the small black connector locate the locking pin and flip the connector 180 degrees so the pin is on the bottom. You'll see a lower gauge yellow and black wire, this is the power in, to the LEFT of these are 4 blank spots, and below that are 4 wires. The blank spots are the missing speakers, the wires below are the speakers that correlate to front right and rear right on the factory harness side.
The wiring to the cambus connector is the exact same as are the outputs of; camera ( factory backup cam), aux in L, aux in R, CD Audio L, CD Audio R. So neither harness has any additional features OTHER THEN speakers.
Confused yet? haha
Factory connector pin out
Side by side of the two different harnesses.
Pinout of the two harnesses on the factory connector end
Pinout on the unit's connector end
Same as above but showing the wires