Does this site possibly have schematics for blazers without factory amps? Or maybe in a different location?Question, have you looked from both sides of the center console? While looking thru these schematics I found the diagram for the "Radio Speaker Amplifier" and it's in the exact same place diagram-wise as the ANC. Is there a chance that it's on the driver's side and you just can't see it?
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I've done some more digging. I looked on my car, drivers door sill, look down in the rocker panel and found the silver GM sticker with the qr code. Apparently that QR code gives you all the codes for RPO (Regular Production Options). So I pulled my code, got all the little codes. In that I found out my car has IOR. That is my infotainment configuration. So then I pulled the description of the IOR system and I found "Active Noise Cancellation (if equipped)". So then i went and looked at the IOS/IOT models. There is no listing of active noise cancellation. However there is a section that says "Audio Amplifier (if equipped)". So i'm wondering if since these are all listed as "if equipped" that it's optional and in order to allow buyers to outfit their models they ship them with the microphone grills installed in the headliner but there isn't actually any microphones or module installed? It's one theory so not sure.
More info from the description page:
Okay since I don't gave either I should be good
Yep. Me on the other hand need to install that bypass and relook at my levels lol. Thanks a bunch for bringing attention to this
Just to follow up. I had time to pull apart my center console yesterday and turns out I don’t have the ANC box. The picture just made it look like one was there 🤦♂️. So I just did the front passenger side headliner mic delete. It was super easy. Disconnect battery, Unscrew handle in the headliner, remove plastic cover over seatbelt pillar, pull headline down just enough to reach in and disconnect the wire going to the mic. Putting it all back together just requires a thin flat head to make sure the rubber trim on the edges are back over the headliner. After all that I went and re-did my input sens on my amp. I was actually running it too low. Drove around town to test. No errors from mic being unplugged, sub sounds good and loud, no feedback.
Depends on if your car has an anc box. If you don’t have a little silver box in the center console I’m not sure where the box is or if the car even has a box. It might have it built into the radio. For my situation I thought I had an anc box but when I pulled apart my center console there was nothing there. See my reply right above yours. Single mic delete on the front passenger side is the way to go. It’s so easy. One screw on headliner handle. One screw on b pillar. Pop b pillar clip pull down headliner the slightest bit to unplug the mic. That’s it. Unplugging just one mic was enough to disable my anc.
Yea that’s probably what I’m gonna do and be done with it. Mine didn’t have the silver box in the center console.
I just received my harness from LLJ Customs and I have the feedback issue even though I don't have the ANC module. We're you able to get the headliner looking like factory when you were done? I am worried I will not be able to do so.
yeah so you havethe same configuration as me. Anc mics but it’s all handled by the radio all in one. Yep headliner looks just like stock. You unhook the battery, remove the front passenger roof handle, and then the one screw on the b pillar. Remove all that and the liner comes down just enough to reach in there and disconnect the mic. When putting it back you just have to use a thin flat head or trim tool to slide the rubber trim back over the liner. It’s really easy.
While your in there I would disable all mics. At first I only disabled 1 mix it seemed ok for a a few weeks until it had feedback again. After disabling all 4 mics I could definitely tell my clarity in my subs, so that means with 3 mics anc is still doing something
That’s interesting. I read one disables. I’ve had my on unplugged since the end of November and not a single issue. I even went back in and releveled my amp so it was at its optimal voltage. Hits hard and clean and no feedback. Guess I’ll be on the look out for it it feedbacks. Thanks for the heads up.
Your welcome! Yea ours was sounding good too but kinda a rare instance have excessive feedback. After I took out the other 3 mics it’s alittle more clear than it was before but you could definitely tell the other 3 mics we’re doing something cause now the outside wind noise is alittle louder with no mics
Thanks alot for doing this write up, it has been quite helpful. I have a 2023 that I am trying to get parts together for to do an install and I think my radio is going to be in the same location as yours. It is not in my center console. I have a BCM and ANC module in there but no radio. I want to try to look in the area that you posted, but can't figure out how to remove that panel. I can get it started on the bottom of the door seal, towards the back side of the front door, but can't get more than 1 or 2 clips loose without feeling like I am going to break it. Are there some screws I have to remove or is it all clips? If it is just clips are they extremely tight to the point where you feel like something is going to break?
Glad you got it. I can’t remember the colors but those are def the clips. The website literally saved me. Thought about snapping a bunch but it’s a massive catalog just couldn’t be bothered lol.
Those were the same color plugs I tapped onto for my rca plugs. I have the pin out of the plugs somewhere if you need
That would definitely be helpful if you don't mind sharing. Thanks alot.
