[Papermaker]

Not sure if any of this will help but it didn't cost me anything to post it.
View attachment 75336 View attachment 75337 View attachment 75338

So Amp pinout question....amps need input signals, which pins are these? My harness doesnt have the 3 connectors that some have to add an amp so I should be able to add my own connectors by cutting into the full signal 16,17,18,19 and making them HLI to a 5 channel amp? Then run wires from the new amp output to proper speakers? Ill probably have to unwrap the harness wires going to the factory RF amp to figure whats going in and whats out. All of the outs on this diagram are confusing to me...subs dont need L/R, and I know they have the the four 6.5' all on front channels, with the sub bridged to the rear......this is so messed up. I have 7 button RC with the lacking channel for stage 4 sub

 

[Renob4x4]

So Amp pinout question....amps need input signals, which pins are these? My harness doesnt have the 3 connectors that some have to add an amp so I should be able to add my own connectors by cutting into the full signal 16,17,18,19 and making them HLI to a 5 channel amp? Then run wires from the new amp output to proper speakers? Ill probably have to unwrap the harness wires going to the factory RF amp to figure whats going in and whats out. All of the outs on this diagram are confusing to me...subs dont need L/R, and I know they have the the four 6.5' all on front channels, with the sub bridged to the rear......this is so messed up. I have 7 button RC with the lacking channel for stage 4 sub

Not sure on how to get this right either.
Just posting what I have, so maybe someone with more audio system knowledge can work it out.

 

[Kman12]

I was reading posts about adding rear speakers to the PMX-2 with the factory 23 pin connector and saw a bunch of wacky ideas so I decided to figure out where the pin outs for the rear speakers, remote and sub outputs were. I knew they existed but Polaris decided it wasn't important enough to add the wires so we could later add rear speakers or an amp.
Attached are pics of the pinouts (minus the sub outputs) for the factory 23 pin plug going into the PMX-2 and the harness I built to tie into the rear speaker harness. You will need to buy the connectors and know how to unlock the connector to add the pins. Fader and balance work perfectly and sound quality and dynamics has improved significantly.

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Did you ever figure out the sub pre-out pins on this head unit?

 

[Lilrez]

Was the rear speakers loud enough without the amp and just running off the pmx2?

 

[Papermaker]

I bet they were….sounds way better than amp imo

 

[Lilrez]

An amp using line level adapters off the front speakers ?,

 

[Lilrez]

Ya or no

 

[288rr]

I just installed rear on my xp4 using the pin outs and they are loud just using the pmx2
I’m happy I did it and everyone in the back is happy they can hear the tunes now too