[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.

View attachment 68227 View attachment 68228 View attachment 68229 View attachment 68230

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

 

[Cousin Eddie]

Subscribing.

Attempting to figure out the sub preouts as well. This thread might be helpful... I think?

 

[Cousin Eddie]

So after speaking direct with MTX about intergrading their amped subwoofer into my General with the PMX-2, the guy I spoke with got me headed in the correct direction.

This was his reply:
The new Rockford Fosgate systems for Polaris (2022+), more particularly the Generals, are now set as a Rockford proprietary standard meaning Rockford does not have universal audio output. There is a dedicated subwoofer output plug on the Rockford Fosgate amplifier, but currently no company has made an adapter. That being said, the workaround to installing our General10 subwoofer with the Rockford fosgate/Polaris system is to use a universal line output convertor (LOC). This part will convert speaker output signal that you can wire from one of the front speakers to RCA and you would then run your RCA to the General amplifier. The LOC that I would recommend would be AX-MLOC725. I hope this information helps and feel free to reach out if you have any more questions.

so you need this... $20 on amazon currently
AX-MLOC725

Built a simple harness using Dephi connectors to tie in direct to factory front speaker plugs

Connected yellow to my switched power, black to ground, and blue to the remote power up on my MTX sub woofer package. (I had already landed the main 12v+/- for the sub package to power posts)

The blue wire on the AX-MLOC725 is supposed to be the remote turn on for the amp, but no matter what I tried, I could not get it to show 12v on the blue wire. The instructions said that you could tie it in to the yellow wire if you have that switched so I ultimately ended up taking that route and was able to get the amp to power up.

Mounted the LOC behind the dash and ran the RCA's down to the sub woofer

Unplugged the Delphi connectors right above the speakers and installed my harness to grab the signal from the speaker to the LOC.

Success!

While messing around with things, I did notice that if I unplug one of the RCA cables from the LOC (either red or white) the bass doubles and will rattle the plastics till you turn the adjuster knob down to a reasonable level. (I don't understand subwoofer logics so I am sure someone with much more experience can explain why that is.) So you might only need to connect to the speaker on one side not both? Someone can answer that better than I can.

The MTX subwoofer is impressive. Very clear, very crisp... I did not realize how much the stock audio was lacking until you push the button for the woofer to power up and the sound fills out nicely.

Hope that this will help someone down the road.

 

[Cousin Eddie]

Oh, and one more thing. I did ask if I could just take the signal from the 2 pin subwoofer out plug that is behind the glovebox and tie that to the LOC and this was the response that I got from MTX tech.

I would meter the output first to measure if it is a preamp or post amp signal. On a multimeter, preamp would read a voltage of .9-2 volts A/C. Post amp signal would read 5-10 volts A/C. More than likely it would be preamp signal and you can wire them up to RCA directly. You would need to know the polarity of the signal when connecting. If it turns out to be preamp, you would not want to connect the LOC because it will delude the already low signal coming out of the amplifier. The LOC recommended was built to withstand up to 80 watts of power and delude the signal to preamp levels. I would probably go to the speaker with LOC to ensure everything will work if I wasn't sure what the wiring was coming out of the Rockford RideCommand amplifier.

So if someone can make sense of that... maybe they can have more to add and make it even easier? Again, I am not very educated in stereo talk.

 

[docjay]

Oh, and one more thing. I did ask if I could just take the signal from the 2 pin subwoofer out plug that is behind the glovebox and tie that to the LOC and this was the response that I got from MTX tech.

I would meter the output first to measure if it is a preamp or post amp signal. On a multimeter, preamp would read a voltage of .9-2 volts A/C. Post amp signal would read 5-10 volts A/C. More than likely it would be preamp signal and you can wire them up to RCA directly. You would need to know the polarity of the signal when connecting. If it turns out to be preamp, you would not want to connect the LOC because it will delude the already low signal coming out of the amplifier. The LOC recommended was built to withstand up to 80 watts of power and delude the signal to preamp levels. I would probably go to the speaker with LOC to ensure everything will work if I wasn't sure what the wiring was coming out of the Rockford RideCommand amplifier.

So if someone can make sense of that... maybe they can have more to add and make it even easier? Again, I am not very educated in stereo talk.

I recently installed the MTX-10 in my 2020 xp 4. I have the pmx-p2 head unit.. I connected the SW to Pins 6&7. #6 is Neg. #7 is Pos. I did this by cutting off the RCA connectors coming from sub. Keep in mind the RCA's are like a Coax cable. Once you cut off one of them you will find a smaller wire inside the wire itself. The smaller wire is the Dialectric which has to be connected to the 23 pin connector of the Pmx-p2. The outer wire is trimmed away. The smaller wire(dialectric) was spliced to additional wire I added to reach pmx-p2. From there I added the ampseal connector pins I bought from Mouser to Pins 6&7. Hope this helps.

 

[Buelligan666]

I recently installed the MTX-10 in my 2020 xp 4. I have the pmx-p2 head unit.. I connected the SW to Pins 6&7. #6 is Neg. #7 is Pos. I did this by cutting off the RCA connectors coming from sub. Keep in mind the RCA's are like a Coax cable. Once you cut off one of them you will find a smaller wire inside the wire itself. The smaller wire is the Dialectric which has to be connected to the 23 pin connector of the Pmx-p2. The outer wire is trimmed away. The smaller wire(dialectric) was spliced to additional wire I added to reach pmx-p2. From there I added the ampseal connector pins I bought from Mouser to Pins 6&7. Hope this helps.

I don't think you understand the term dielectric.

dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs

The center wire or "conductor" is surrounded by "dielectric" to insulate it from the outer shield wire. The outer shield wire helps prevent interference created by other electrical sources.

 

[Cousin Eddie]

I recently installed the MTX-10 in my 2020 xp 4. I have the pmx-p2 head unit.. I connected the SW to Pins 6&7. #6 is Neg. #7 is Pos. I did this by cutting off the RCA connectors coming from sub. Keep in mind the RCA's are like a Coax cable. Once you cut off one of them you will find a smaller wire inside the wire itself. The smaller wire is the Dialectric which has to be connected to the 23 pin connector of the Pmx-p2. The outer wire is trimmed away. The smaller wire(dialectric) was spliced to additional wire I added to reach pmx-p2. From there I added the ampseal connector pins I bought from Mouser to Pins 6&7. Hope this helps.

Did you figure out if 6 & 7 pre amp or post amp?

 

[docjay]

Im not sure about pre/post? I went off a schematic that was posted on the forum. It only shows Pos/Neg. Pins 6&7 are only sending signal to the Sub. The Amp that is built into Sub unit doesnt boost my front and rear speakers.

 

[patstuebs]

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

Does this mean the PMX has 3 distinct plugs with one being dedicated to a sub out?

 

[Johnny 7]

@patstuebs
Welcome.

PM sent.

 

[Silvefhades]

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.

 

[Cousin Eddie]

Does this mean the PMX has 3 distinct plugs with one being dedicated to a sub out?

Yes

The one for the sub woofer is above the glovebox where you would install the Polaris sub.

Not sure if it is pre amp or post amp yet. No one has determined that yet to my knowledge.

 

[Hazztrazzle]

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.