2025 Ram 1500 Limited Sub/Amp Install

[bshelton8]

The new Stellantis High architecture is being a pain in my side on many fronts. Tuning, mods and now stereo. I recently installed an aftermarket sub and amplifier in my 2025 Ram 1500 Limited. The install was fairly uneventful overall. I had hoped to use my AP4-CH41 by AmpPRO like I have on many installs to make things easier. As you can see from the picture below, everything plugged in from the harness supplied with the AP4-CH41 and from all aspects looked like it was going to work. However, after running the RCA cables and remote wire, I realized it was not working at all. I verified everything with a fluke power meter and nothing. Evidently some of the pin outs in the factory wiring harness were changed with the new Stellantis High architecture on the 2025's. Below are several pictures of the connections on the back of the screen and AP4-CH41.


After I realized that the AmpPRO AC4-CH41 wasn't going to work, I had no choice but to install the LC2i PRO by Audio Control. The LC2i PRO does the job but I always have issues with floor noise and random humming even with the radio completely off. This is common in all makes and models of cars I have used the LC2i PRO. The LC2i PRO just requires lots of tweaking and tunning to get things just right. I tapped into the factory subwoofer leads for the signal feeding the LC2i PRO. Since I was only interested in adding a subwoofer, tapping the factory subwoofer leads works just fine. If you are wanting to install mid-range door speakers and/or tweeters, you would need to tap into the door speakers to get a better frequency range feeding the LC2i PRO.

Here are some pictures of the back during the install phase. I just used liquid nail to glue a piece of MDF to the back wall behind the drivers seat. After the MDF was installed, I placed dynomat to the back wall to quite things down and help with the sound.


Here is a picture of the fuse block and power cable ran in the engine bay. This part was fairly straight forward with no issues.


The end goal was just for a simple clean install to add more bass, nothing competition level. Below are some pictures of the final install.

 

[UNSAFE]

I like it! I'm also considering upgrading the bass in my '25. What is that sub box you're using?

 

[LITTLEREBEL]

On my 2019 Rebel I used an Amp pro AP4-CH41 with a Stinger X optical cable to my D4S DSP along with my D4S amps. Doing this has improved the sound drastically.

 

[bshelton8]

I like it! I'm also considering upgrading the bass in my '25 also. What is that sub box you're using?

It's a Frostbite FBRAM dual series box. Unfortunately, Bruce Wiegand closed the business and you can no longer get these. He had some really good sub boxes at reasonable prices. It's a shame he shut the business down.

 

[UNSAFE]

It's a Frostbite FBRAM dual series box. Unfortunately, Bruce Wiegand closed the business and you can no longer get these. He had some really good sub boxes at reasonable prices. It's a shame he shut the business down.

Thanks for the reply! Would be awesome to find the schematics for it.

 

[sizmtrz]

Thanks for the reply! Would be awesome to find the schematics for it.

Check out MTI acoustics they make very similar style ultra high quality boxes! If ported is more your style, try fox acoustics.

 

[danielskaggs77]

Would you mind sharing the factory sunbwoofer wires' location and color for the rest of us?

Sent from my SM-S918U using Tapatalk

 

[Whoa_Ram]

OP is it possible to put a shallow mount sub behind the seat? As much as I would love to have some 10's, I usually have my rear seats up and my dog is usually sleeping or pacing the back seat area haha.

 

[bshelton8]

Would you mind sharing the factory sunbwoofer wires' location and color for the rest of us?

Sent from my SM-S918U using Tapatalk

I dropped the ball and don't seem to have a close up picture of the sub wiring. The factory sub is a dual voice coil subwoofer. If you pull the sub from the enclosure, you can identify the left and right pairs. They wiring inside the closure is a different color from the wires feeding the sub plug. This picture at least shows the sub enclosure and wiring connector.

 

[bshelton8]

OP is it possible to put a shallow mount sub behind the seat? As much as I would love to have some 10's, I usually have my rear seats up and my dog is usually sleeping or pacing the back seat area haha.

I have seen it done but there is very little room behind the rear seat.

 

[Whoa_Ram]

I don't want to lose out on the space I have at the back, so I might have to go with something low profile.

 

[bshelton8]

I don't want to lose out on the space I have at the back, so I might have to go with something low profile.

I found this for you. I don’t know anything about Net Audio but it seems like a good setup and exactly what you are looking for.

2019-up Ram 5th Gen Crew Cab 1500 Behind the Seat Audio

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netaudio.com

 

[Whoa_Ram]

I found this for you. I don’t know anything about Net Audio but it seems like a good setup and exactly what you are looking for.

2019-up Ram 5th Gen Crew Cab 1500 Behind the Seat Audio

dodge ram 5th gen, 5th gen ram, 5the gen ram crew cab, ram crew cab, crew cab subwoofer box, 5th gen ram crew cab subwoofer box, ram crew cab subwoofer box

netaudio.com

Appreciate it. I'll look into it and see if I can find anybody who installed it and some reviews.

I noticed they are about and hour and a half away from me. I sent them a message, going to see about visiting them on a weekend if possible.