PAC ANC-CH01 ANC-CH01 Factory ANC Module Bypass Harness for Select Chrysler, Jeep, and Ram Vehicles, Black

I installed some aftermarket speakers in my 2021 5th gen RAM 1500 and started getting this weird droning sound. Thought I had something going wrong with my truck. Sounded like it wasn't downshifting, and it sounded like the exhaust was louder. Did a little research and found this is a pretty common issue and the fix is to bypass the ANC (Nose Cancellation) under the front driver's seat in my truck. Took 5 mins to install and fixed all my issues. I didn't notice any more road noise than there was before either, so no issues there. Never would have dreamed that this could be caused by upgrading speakers. Thankfully it's an easy fix.

I recently purchased a 2019 Ram 1500 pick-up that had aftermarket wiring for an amp in it. I had a Basslink sub and decided to hook it up. It worked great, until I started the truck... The factory speakers were fine, but the sub started to cut on and off as I was driving... Started to research online and found on one of the forums they referred to this bypass unit because the ANC unit was the cause of the problem... So I got one, and it worked perfectly. Only took a few minutes to install, and have been happy with it since.

Worked great

Vehicle Info: 2019 Ram 1500 Big Horn Quad Cab. 8.4" stereo display. Not the premium sound package (Not stock Alpine speakers).I replaced all 4 stock speakers in the doors and as soon as I went for a drive, the noise was immediately noticeable. It's tough to describe, but I guess a deep "droning" noise comes close. It sounded like the engine got way louder even though it was obviously operating as usual. Definitely will give you a headache if you had to deal with it for more than a few minutes. I was muffed at why the heck this was happening for sure. I've replaced dozens of speakers over the years and there really isn't much to it.......So, after doing a ton of research I learned that my truck (and many other vehicles nowadays) have what's called 'Automatic Noise Cancelling' or ANC built into the vehicles. Because of the specs of my upgraded speakers, they are able to produce these sounds that the crappy stock speakers can't do, hence creating this new, awful noise.I spent hours trying to find wiring diagrams and reading blogs and posts and forums and eventually I just decided to take a shot on this harness. It arrived in less than 24 hours, took less than 2 minutes to install, and right away, I took my truck for a spin around the block. VOILA! It's magically gone!Basically what the harness does is bypass the wiring for the ANC system in the vehicle. Everything else works, including phone calls and bluetooth, and as a matter of fact, my new speakers actually sound like they should now!I think the harness was $24 or $25 but I would have EASILY paid way more than that to get these kind of results!

On this bypass module the plug didn't lock into the speaker wire connector and my front speakers are starting to cut in and out. I did tape the connectors together Contacted manufacturer who said I should have a one year warranty through seller. Still hoping to resolve but Amazon just shows a 1 month return policy which has lapsed. PAC stepped up since Amazon didn't list the seller so I could contact them about the warranty they honored it even though the policy is the warranty goes through the seller. 5 stars now, not for the seller but for the manufacturer. I've used PAC products for some time and will continue to use them

The Only reason this product didn’t get 5 stars is because shipping took FOREVER. Replaced speakers in my 2019 Ram 1500 and ended up with the infamous “Drone Noise” purchased this it totally eliminated the drone noise coming through my speakers. Works exactly as advertised.La única razón por la que este producto no obtuvo 5 estrellas es porque el envío tardó UNA SIEMPRE. Reemplacé los parlantes en mi Ram 1500 2019 y terminé con el infame "ruido de drones". Compré esto y eliminó por completo el ruido de drones que salía de mis parlantes. Funciona exactamente como se anuncia.

Worked as it should

This product did not work for my 2019 Ram 1500 Bighorn. When plugged in it bypassed everything. No sound from factory door speakers or microphone input for phone call. Spent a week going back and forth with technical support with redundant questions and no solutions. I would only get one response a day with questions an no answers. Questions from support where phrase to make it sound like I had no idea what I was doing. I do not claim to be an expert in this but when I informed support that I only plugged in the bypass and nothing else. Then to be asked if I plugged in anything else right after being told I did not, is not very helpful. If anyone else is looking to buy this bypass buy at your own risk and if it works for you congrats. Thank you for attending my TED Talk.

Excellent working product for my 2019 Ram 1500 Sport. Made installation of aftermarket amp and subwoofer both possible and simple.

It has not changed anything with my stereo at all. So disappointed with this purchase