[Petrol Head]

Since GM changed the IOS and hardware architecture for the Bose system for the 2019 model year, I thought it would be prudent for everyone who has questions about it or has done major upgrades (replacing the factory Bose amp and speakers) to put their comments and tips here.

Again, this is for ONLY model years 2019-up and ONLY Camaros equipped with the factory Bose system.

Thanks!

[SWRocket]

Great call on this thread.

[SWRocket]

In case anyone needs this: The Camaro Master sheet that Crutchfield sent me when I ordered my speakers
2016-2020 Camaro Master Sheet

[SWRocket]

Does anyone know if the 5 1/4" speakers by the back seat are 4Ohm or 2Ohm with the Bose system?
I'm planning on running differential rear fill and could use the stocks since they'll be playing limited range and attenuated 20db but only if they're 4 Ohm.

[Silent_H_]

I have a 2021 with the Bose speakers, and I'm not sure if this is normal or not: ~90% of the sound seems to come from the front of the car. If I use the fader and move it to the rear, I lose almost all sound. Are there just not really any speakers back there, or is there a chance my car didn't get wired properly?

Thanks!

[Petrol Head]

Originally Posted by Silent_H_

I have a 2021 with the Bose speakers, and I'm not sure if this is normal or not: ~90% of the sound seems to come from the front of the car. If I use the fader and move it to the rear, I lose almost all sound. Are there just not really any speakers back there, or is there a chance my car didn't get wired properly?

Thanks!

The 6x9’s in the rear package shelf are low pass only, theoretically your subwoofers. So the only mids and highs that come out of the rear is the 5 1/4” mid-range speakers in the side panels next to the back seat. So yes most of your mids and highs come out of your front speakers. The rears are really just bass and filler.

[Silent_H_]

Originally Posted by Petrol Head

The 6x9’s in the rear package shelf are low pass only, theoretically your subwoofers. So the only mids and highs that come out of the rear is the 5 1/4” mid-range speakers in the side panels next to the back seat. So yes most of your mids and highs come out of your front speakers. The rears are really just bass and filler.

OK good to know. It's weird though - the bass totally cuts out if I shift audio fully to the rear. Maybe I'll have my dealer verify that it's all hooked up. I did check that there *are* speakers there haha.

[Petrol Head]

Originally Posted by Silent_H_

OK good to know. It's weird though - the bass totally cuts out if I shift audio fully to the rear. Maybe I'll have my dealer verify that it's all hooked up. I did check that there *are* speakers there haha.

Lol yeah That’s probably the way it’s designed. I’ll try it out when I get in my car later today. The processor will roll the bass boost down as you turn the volume up, so it may do the same as you turn the faders to the rear. They designed it like that so people don’t blow the “subs” at loud volumes.

That’s why people are keen on going with the ZEN AVB for a complete aftermarket system. It takes all the processed garbage from GM’s software architecture and turns it into full bandwidth analog audio on all channels that does not roll off. I’m just waiting for Zen to get some bugs worked out.

[Petrol Head]

Originally Posted by Silent_H_

OK good to know. It's weird though - the bass totally cuts out if I shift audio fully to the rear. Maybe I'll have my dealer verify that it's all hooked up. I did check that there *are* speakers there haha.

Here’s what happens: when you fade to the rear you’re losing your 6x9s in the lower front door panels. Those provide a lot of bass apparently, not just mids like I had originally thought. The way the imaging is set up on this car you need to have it completely centered and sitting in the front seats to get the best sound.

[Silent_H_]

OK thank you for all the extra info! It doesn't bother me much, but just seemed odd enough that I thought there was a chance something wasn't hooked up. Really odd that they don't really use the rear speakers much at all since they're there.

Cheers!

[Petrol Head]

Originally Posted by Silent_H_

OK thank you for all the extra info! It doesn't bother me much, but just seemed odd enough that I thought there was a chance something wasn't hooked up. Really odd that they don't really use the rear speakers much at all since they're there.

Cheers!

Yeah I’m thinking when I do my system I’m just going to remove the side panel speakers completely. It’s where your reverse and blind spot sensors beep out of but the Zen processor mixes everything down to 4 standard stereo channels so the rear beeps would just come out of my package shelf 6x9s. You can easily do so much better with an aftermarket system and 6 speakers (front tweeters, front 6x9s, rear full bandwidth 6x9s). Couple of good amps and high quality speakers and you won’t even need a sub box taking up trunk space.

[SWRocket]

For anyone looking to replace the side rear speakers in a Bose system, I just finished that part of the install yesterday using the Scosche SAC-656 Adapters. They work great and easy to install. I used the Dayton Audio DC130B-4 which you can see mounted in the adapter on the right with the OEM Bose speaker left.
Here are some pics

[SWRocket]

Just finished installing Audio Frog GS690s in the doors and thought I'd put some info on the adapters I used.
I bought pre-fab adapters from Audio Designs made for the Camaro and the speakers.
I used NVX baffles for sealing the speakers in. Both the adapters and the baffles are excellent and work very well.
Here are some pics:

[SWRocket]

Just an FYI, for anyone running the Zen AVB-GM, there was a firmware update in September that you can download. Not 100% sure what it fixes, but just in case...