[Davis_1377]

I just installed a system in my wife’s 2020 Blazer that does not have have the Bose system. I did not use a T harness, I stripped alittle of the wire coating and soldered 2 female rca ends behind the connector on the radio box under the dash by the right kick panel. If anyone needs wire colors I can post the diagram I found. I have not disabled ANC and it is a problem. I would assume it’s on the box that the speakers plug into. I’d rather not go thru the headliner. Any of y’all that bought a T Harness show what plug or wire affects the ANC or how to disable it?

 

[Davis_1377]

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.

 

[Davis_1377]

I have completely disabled the anc mic on the driver side only and all has worked well for 3 weeks now but for some reason anc kicked in again and driving the subs crazy, I guess I am going to have to disable all anc mics. I had the passenger pillar trim off to run a dash cam wire and looks like the anc mics are all ran down together. Does anyone know what the wire colors are, Mabe I can disable them all at the plug behind the pillar.

 

[Davis_1377]

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

 

[Davis_1377]

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

 

[Davis_1377]

I figured it out. You do just pull up on 3 clips from the back and the 2 clips in the front pull out towards the back of the vehicle. They were extremely tight and the clips stayed in the body instead of on the door seal like they were supposed to. I gave them a little squeeze before pulling them back on to hopefully make them a little looser next time. The bad part is I don't even think that was necessary. The radio is above the felt, not behind that panel, I guess I just overlooked it. I paid for a days subscription to that website. I am going through right now screenshotting the whole website...lol. It is going to be so unorganized I will probably never use it, but might as well do it while I can.

BTW: Did you radio have the same clips as mine in the picture? It looks like I have a grey and black.

View attachment 1967

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

 

[Davis_1377]

That would definitely be helpful if you don't mind sharing. Thanks alot.

This was a image I found on google somewhere that used. I did not try the radio 12v or radio ground wires. I tapped onto F20 fuse for amp remote and the rear speakers for my amp high level input