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Eligible for Return, Refund or Replacement within 30 days of receipt
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PAC AOEM-GM24 GM 24-pin Premium Sound System Interface

3.7 3.7 out of 5 stars 123 ratings
$52.49
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Purchase options and add-ons

Brand PAC
Connectivity Technology RCA
Number of Channels 4
Item Weight 9.6 Ounces
Operating System Windows

About this item

  • Plug in installation retains factory wiring integrity
  • Linear 20-20,000Hz sound reproduction based on input signal
  • 4 channel RCA output
  • Output level controlled by factory radio
› See more product details

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Important information

Legal Disclaimer

This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Product Description

OEM-1 with a vehicle specific harness plugs into the vehicle's wiring and provides a stereo RCA audio output for adding aftermarket amplification. Provides full range audio output 20-20,000Hz. Audio output level is controlled by the volume of the factory radio.

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Technical Details

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
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Customer reviews

3.7 out of 5 stars
3.7 out of 5
123 global ratings

Customers say

Customers like the performance, ease of installation, and connectivity of the audio midi interface. They mention that it works great, it connects right to the factory amp, and that it plugs into the factory harness perfectly. That said, some complain about the fit and sound quality.

AI-generated from the text of customer reviews

21 customers mention17 positive4 negative

Customers like the performance of the audio midi interface. They say it saves time and headaches vs splicing, and works as intended. Some mention that it works great for installing amps into their 06 Chevy and that the steering wheel controls still work perfectly.

"...Steering wheel controls still work perfectly and the AMP's integration went smooth as possible. They work great together...." Read more

"Worked fine for a month. Suddenly stopped working. I have checked all the connections and nothing is loose. Would not recommend." Read more

"I mean.. if you need it you need it and this works great for installing amp into my 06 Chevy with factory stereo.. ran RCA from this device to my..." Read more

"This product works perfect! I used it in my '04 Chevy Silverado with factory Bose sound system. I plugged it in in the center console...." Read more

18 customers mention16 positive2 negative

Customers find the installation process of the audio midi interface to be easy. They say it saves time and headaches compared to splicing. They also say the directions are clear and easy to understand.

"...Steering wheel controls still work perfectly and the AMP's integration went smooth as possible. They work great together...." Read more

"...price then the competitors still does the same job easy to install great for hooking up subs" Read more

"...same as what is on the back of the factory head unit, so it was truly plug and play." Read more

"It does what its suppose to. Easy to install in my Corvette Z06...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the connectivity of the audio midi interface. They mention that it connects right to the factory amp and allows them to run the factory sub. The connectors are perfect and it plugs into the factory harness perfectly.

"Perfect oem connectors. Plug and play application for adding my app and subs on a Bose system...." Read more

"...it connects right to the factory amp which also allows you to run the factory sub. No need to even pull the dash apart, Just the rear seat." Read more

"...Functions just as advertised. Plugs into the factory harness perfectly." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the quality of the audio midi interface. They mention that it is a good product at a lower price.

"Good quality lower price then the competitors still does the same job easy to install great for hooking up subs" Read more

"Good product..." Read more

"Good product..." Read more

5 customers mention3 positive2 negative

Customers are mixed about the sound quality of the audio midi interface. Some mention it has great sound quality, while others say that the whine is not real loud and that they hear engine noise over their door speakers.

"...Sounds great and no complaints whatsoever." Read more

"It connects a amp to my 2005 suburban with onstar and no xm. loud thump when i turn on my car so i installled a toggel swtch onto the remote wire so..." Read more

"...So all Bose-O speakers out! Bose-O Amp Gone-aroo. At last nice clean sound and a hot steaming pile of Bose in a box in my garage." Read more

"...Easy to install in my Corvette Z06. Downside is now I hear engine noise over my door speakers...even though I only used this item to hook up an amp..." Read more

5 customers mention0 positive5 negative

Customers are dissatisfied with the fit of the audio midi interface. They mention that it makes a very tight fit behind the factory stereo head, is too large, and hard to fit behind it. However, some customers say that the cables on it make it easy to adjust once it's plugged into the head.

"Was not what it was sold as, does not fit the vehicle advertised for." Read more

"...and all associated harnesses and wiring from both interface make a very tight fit behind the factory stereo head unit...." Read more

"It works. Nothing magical, it just works. It is too large andis a bear to get in the spot it needs to go in the dash btw." Read more

"...A little hard to fit behind the head unit though." Read more

Top reviews from the United States

Don N
5.0 out of 5 stars Great Product
Reviewed in the United States on August 20, 2013
Verified Purchase
95% out of 100 for me and the 5% is very minor! Perfect fit and connection for my "made for GMC (OEM)" Bose Audio system in my 05 Envoy. Delco P/N 15183817. I integrated an old Sentrek 80 X 80 Watt AMP and Pioneer 1000 Watt 10" Sub I had just laying around.

Steering wheel controls still work perfectly and the AMP's integration went smooth as possible. They work great together. I'd love to replace the Bose and might do so at a later date. It doesn't play MP3 but does have a center console DVD for the Rear passenger. Now Movies just got better with the Sub.

Instructions were OK with me but I already knew how to install. The problem I have is the Pink Wire used for sensing (Auto On) with the Blue wire on the System and the AMP is also tied into the Envoy's lighting system. So that every time I open the doors, the AMP comes on. Other gripes include; The RCA connector's wires could have been just a little longer. This so they could be reached or accessed without having to remove the Receiver. Maybe could have shipped with a Headphone connector or etc....

Anyway, this is still easily a 5 star Item and I'm very happy with it. I would purchase this Item again if needed.
4 people found this helpful
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Gregg G.
1.0 out of 5 stars Does not last
Reviewed in the United States on February 22, 2020
Verified Purchase
Worked fine for a month. Suddenly stopped working. I have checked all the connections and nothing is loose. Would not recommend.
2 people found this helpful
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Traut
4.0 out of 5 stars Works great, saves time and headache vs splicing.
Reviewed in the United States on February 23, 2020
Verified Purchase
I mean.. if you need it you need it and this works great for installing amp into my 06 Chevy with factory stereo.. ran RCA from this device to my amp and boom, bumps in the trunk. Imperfect fit into the back of my stereo and clips won't lock but.. has not wiggled loose, I'm happy.
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Mr Review
5.0 out of 5 stars RCA outs
Reviewed in the United States on September 14, 2023
Verified Purchase
Good quality lower price then the competitors still does the same job easy to install great for hooking up subs
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cghbuilder86
5.0 out of 5 stars Works Perfect!
Reviewed in the United States on November 30, 2010
Verified Purchase
This product works perfect! I used it in my '04 Chevy Silverado with factory Bose sound system. I plugged it in in the center console. It was hard to plug all the way in for some reason...tried several times and then ended up spraying a little wd-40 on the plug. Then it slide all the way in. I spliced the blue and white wire on the PAC into the pink wire in my wiring harness for the remote turn on. And it works great. It gives me RCA plug outs from my factory sound system so I could add an amp and sub woofer. Sounds great and no complaints whatsoever.
6 people found this helpful
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Jennifer Moe
1.0 out of 5 stars Wrong description
Reviewed in the United States on February 2, 2020
Verified Purchase
Was not what it was sold as, does not fit the vehicle advertised for.
One person found this helpful
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Noah
2.0 out of 5 stars Really not impressed. Doesn't work like it should.
Reviewed in the United States on June 2, 2021
Verified Purchase
First, the instructions are meant for many applications. I get that - they need one SKU to work for lots of vehicles. That being said, they did not provide adequate instructions to figure out what configuration you need based on the different ways this can operate. Worth noting, I'm an electrical engineer. I only figured out my application based on process of elimination after reading the instructions for ALL applications and based on knowing the other instruction sets did not apply to me, I was able to get this installed correctly. Not impressed with the instructions.

So, now that that's out of the way, let's talk functionality. It works..... sort of. I find that my radio is on a LOT of times when it shouldn't be. I only purchased this so I could keep my factory radio and have a remote turn on circuit for my external amplifier for my subs. That's the only function I needed from this product, and it does not work well for that. I'll explain.

If I open my door and then take my key out, the radio stays on, which it shouldn't. If I get out and close the door, the radio and my amp are still on, drawing power from the battery. Since I live where it's -20 for extended periods of time each year, that's an issue.

Often times if I want to keep listening to the radio, but want to save gas and turn the engine off, my radio will turn off as well. literally the exact opposite of Retained Accessory Power (RAP), as GM calls it. This module is supposed to take the vehicle serial communication and convert it to a remote on/off circuit without modifying the behavior of the factory radio, and it does not do that.

Often times if I use my key fob to open the doors and grab something, and my back seat is folded down, I can see that my amp is powered up, even though I never even used the key. The amp is controlled by this product.

So does it work? Sometimes. For something that has literally one function, and has been developed/available for almost 20 years, that's just not good enough. If it only had the issue of sometimes turning my amp on when it shouldn't, I probably wouldn't notice so often, but that's not the only issue.

I installed this in a 2005 avalanche with the Bose stereo without navigation, with XM and rear seat audio.

Worth noting: if you only need the remote wire for your amp on circuit, you own a silverado or avalanche AND you have a factory sunroof, then you should know that there's a circuit to hold "retained accessory power" for your sunroof feature, and you can tap into that circuit for your aftermarket radio or amp on signal without introducing these problems, and without spending money.
3 people found this helpful
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Amazon Customer
5.0 out of 5 stars Works exactly as described
Reviewed in the United States on May 20, 2013
Verified Purchase
I installed this in my Hummer H2 in order to add an amp to the factory Bose system. Since I did not want to take apart the entire dash, I actually installed this unit at the factory amp location behind the center console. After doing research, I was unsure if this interface would work if hooked up to this location, but it worked perfectly. The connector on the amp is the same as what is on the back of the factory head unit, so it was truly plug and play.
9 people found this helpful
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Top reviews from other countries

Creedence85
5.0 out of 5 stars Works well for line out
Reviewed in Canada on September 8, 2023
Verified Purchase
Worked perfectly in my 2005 Corvette for adding an aftermarket amp to the factory head unit. The head unit outputs line level so I didn't need the line level converter, I just needed the harness, then soldered RCAs to the line out wires and was even able to tap into the remote turn on wire, so I didn't have to cut or splice any of the factory wiring.
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Creedence85
5.0 out of 5 stars Works well for line out
Reviewed in Canada on September 8, 2023
Worked perfectly in my 2005 Corvette for adding an aftermarket amp to the factory head unit. The head unit outputs line level so I didn't need the line level converter, I just needed the harness, then soldered RCAs to the line out wires and was even able to tap into the remote turn on wire, so I didn't have to cut or splice any of the factory wiring.
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