No. And it's unclear in all these posts if that is even worth trying to figure out - it almost seems like either the wiring is backwards or the speakers are backwards (terminals are reversed) - literally reading many places where these "alpine" speakers are used across FCA vehicles, and how there are multiple aftermarket harnesses that are wired BOTH ways ---- factor in the posts here where some people had to reverse their pin-outs and others didn't (randomly).....it really has me wondering if these trucks aren't getting an "accidental" mixture of "alpine" speakers whose terminals are wired both ways (random)! So, for me, polarity checking each speaker is in my planned routine even though I plan to replace them.
Plus I can tell you from my "app" testing of several trucks on the dealership lot on Monday, the wiring is all over the place in some form. Only two trucks were the same - only passenger side doors were reversed. In the other two trucks, 1) all doors were reversed and passenger side dash was reversed, and 2) the two rear doors were reversed only.
Again, really makes me wonder that since the 71-050 and 71-6514 harnesses are wired opposite, and there seems to be random polarity issues in these trucks, perhaps we have a mixture of alpine speakers in circulation that are reverse of each other...Hmm. Seems far fetched, but....is it???