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2011 Malibu LTZ 3.6L V6 Red Jewel Tintcoat
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That looks like it took a long time, but was most likely a labor of love.

Does your car have ANC, and if so, did you do anything special as a result?
 

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looks good i am looking to put 2 speakers in trunk is there speaker wire there already for them because i have a 2017 Malibu Lt 6 speaker system.
 

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Does anyone have the wiring diagram for Bose set up. I've looked everywhere and cant seem to find it. Trying to add a line converter to add subs.
 

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Discussion Starter · #44 ·
Does anyone have the wiring diagram for Bose set up. I've looked everywhere and cant seem to find it. Trying to add a line converter to add subs.
I assume if you paid for access to the same service manual site you could get the necessary diagrams.

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.

I was admiring your Honda Accord pictures, I like your thread and your expertise. I noticed the Lujack dealer tag on your car.

Are you a Quad Cities resident?

.
 

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Discussion Starter · #46 ·
.



I was admiring your Honda Accord pictures, I like your thread and your expertise. I noticed the Lujack dealer tag on your car.



Are you a Quad Cities resident?



.
Yep, grew up here, left for college and accidentally came back to work here. :)

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A question for keep_hope_alive (or anybody else who knows the answer): Has anybody ever measured the output power and THD of the stock factory amplifier? Does the stock stereo in the Gen 9 Malibu LT have a separate amp, or a small amp built into the head unit? I read on another GM forum that the stock factory radio from around 2006 could put out 9 watts RMS into 4 ohms x 4 channels. Some of the cheapest generic-brand replacement head units claim 13 or 14 watts RMS, so I'm guessing the stock radio may use similar chips. Just wondering.
Just got a 2019 LT and the stock stereo is OK, but the "flying bird" shaped frequency response doesn't surprise me. Everybody is borrowing from the Bose playbook these days.
 

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Discussion Starter · #48 ·
The LT did have an external amplifier and the chimes were located in the amplifier so you lose those if you bypass it.

We never bothered to measure the voltage output but you could put a DMM on the amplifier outputs pretty easily and do a quick calc at various impedances. That calc will be based on the volume level, signal type, and DMM type - a 50Hz tone would be the most accurate read for most meters. The speakers won't like it tho.
 

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One easy way to get output power would be to open up the factory amp and see what kind of output amp chips it has. Most stereo gear these days has integrated amp-on-a-chips, one for each channel. Seeing the model number allows you to look it up online and get all the specs. I have done this for some audio gear already. I don't know if the amp can be opened without damaging it.
 

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So just following up, this worked. I used these RCA adapters with phoenix connectors on them. I am however having an issue with my amp going into protect mode when I start pushing the subs hard. Its a POS Rockville DB16 amp, and I've read reviews that are similar to what I am experiencing. My only hope is that it isn't these connectors causing the issues because theyre not shielded or whatever other reason. I have a Hifonics Brutus 3000w amp on the way so I will follow up after I install it. Bass sounds nice and clean though, no feedback or issues with the ANC.

70669
 

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So everything works fine. New amp took care of my issues. Don't buy Rockville (Amazon) amps, they are junk. Everything works perfect and no ANC issues whatsoever.

70696

70699
 

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Correct, the output I measured from the HU is low level, not speaker level.

From the graphs, I didn't measure any bass attenuation as volume increased.


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What would be the best way to tap into these wires? Can I use a t- connector or is there something better? Sorry I haven't done this in a long time
 

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Discussion Starter · #54 ·
What would be the best way to tap into these wires? Can I use a t- connector or is there something better? Sorry I haven't done this in a long time
Soldering connections is the only recommendation I have, and the only way I tap wires. Anything other than soldering will be problematic. Wires don't need to be cut, you can strip back insulation and solder onto the wire, then tape up (3M Super 33+).

I have videos showing connection methods:



 

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Soldering connections is the only recommendation I have, and the only way I tap wires. Anything other than soldering will be problematic. Wires don't need to be cut, you can strip back insulation and solder onto the wire, then tape up (3M Super 33+).

I have videos showing connection methods:



Thank you for your help
 
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