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Greetings! My first post here... and forgive me if this is in the wrong area, I used my best judgement. I also attempted to use the googles to answer my own question first. I just don't want to make a mistake and mess something up, so I figured I'd pose my query to all you expert types.

As the post title implies, I just recently acquired a 2006 Chevy Impala SS w. 5.3ltr and "every option" as the seller put it. I love it so far. Not a spot of rust anywhere, even underneath - being from NY this is quite a feat. So, the speakers say "Bose" on them, I can assume I have the Bose option? Was it a all-or-nothing option? Like, my car has the Bose factory speakers, so I assume it has the rest of the Bose package?

I like the factory deck, it does everything I need a radio to do... except bluetooth, but I have a 3.5mm BT dongle, good enough. But I do want to add an amp and subs to my car.

The radio I have is this one:
https://www.ebay.com/itm/Chevy-2006-2008-Impala-Monte-Carlo-Car-Radio-Unlock-Service-VIN-Code-Clear-/171413459008

So I suppose I could just tap the speaker wires in the trunk... but that seems like something my 16-year old self would have done and not the professional 37-year old I am today.

Partially confounding me is the mention that steering wheel audio controls, bose vs non-bose, etc conversations.

Is there a product like this:
Amazon.com: PAC C2A-GM24 Amplifier Interface for GM: Electronics


.. for the 2-block 28-pin connector on the back of my deck? I don't want to get the wrong one, I figured perhaps one of you all might have already done this, or might be able to recommend a product already known to exist and work?

I appreciate and assistance given, Thank you.

Kind Regards,

-JDT
 

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I like the factory deck, it does everything I need a radio to do... except bluetooth, but I have a 3.5mm BT dongle, good enough. But I do want to add an amp and subs to my car.

<snip>

So I suppose I could just tap the speaker wires in the trunk... but that seems like something my 16-year old self would have done and not the professional 37-year old I am today.
You also have the input jack on the radio for connecting your phone or other external audio sources. It's not as slick as Bluetooth, but sometimes simple is better - I never hear anyone complaining that they can't get their hardwired connection to work. But I've heard plenty of complaints about wireless connections not working :)

Adding a sub with amp to the existing Bose system is exactly what I did in my 07 SS.

The factory amp was relocated to the bottom of the trunk - there's plenty of service loop in the existing wiring to do this without needing to cut or splice. I placed the factory amp and the sub amp in a wooden enclosure and anchored them over the rear axle just behind the rear seat. A 10 gauge wire was run from the battery to the rear of the car to power the new amp. A 30A fuse was included near the battery. I drilled and installed a stainless bolt thru the rear fender to ground the amp.

While your 37-year old self may object, I tapped the rear speaker wires in the trunk and connected them to the high level inputs on the amp - no line-out converter was needed - it's built into the amp. To be clear, with most amps, there's no need to step down (or step up) the levels. Most amps have both high level (speaker) and low level (RCA phono jack) inputs. While there may be more elegant ways to get the signal from the head unit to the sub amp, grabbing it directly off the rear speakers is very easy and straight forward.

With the factory amp relocated, I used the opening in the rear deck to mount a 10" sub. It sounds great, and supplements the Bose setup very nicely.

I don't have any handy pics of my 07, but I've attached a couple from my son's 02 Impala setup which is nearly identical . I can add more if needed.

HTH.

Doug

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Discussion Starter #4
Dude that is awesome, that's way better than the setup I was envisioning, and way more space efficient.
Is there a pre-made line interface for taking the line input from the factory bose amp that would go inbetween the amp and the "in" to the amp that you know of?

And thanks for the reply!

Kind Regards,

-JDT
 

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Dude that is awesome, that's way better than the setup I was envisioning, and way more space efficient.
Is there a pre-made line interface for taking the line input from the factory bose amp that would go in between the amp and the "in" to the amp that you know of?
Thanks. Glad you like it.

There may be and interface, but I'm not familiar with any.

That said, I don't think you will take any hit in fidelity by picking off the signal from the speaker wires off the Bose amp. As long as your sub amp has high level inputs, there should be no issue.

If you try to get low level signals from the lines between the head unit and amp, that could work. But I've never scoped them up to see what's there. The only concern I have is that I read somewhere that the head unit outputs are affected by a signal (or voltage level on a wire) that tells the head unit it's talking to an amp versus driving speakers. That way, the head unit knows to output low or high levels. So you might need to play around with the setup some to make sure you're getting the right levels.

I looked for a drawing with those signals in it but can't find one on this computer. I'll look on my other computer and send it to you if I find one.

BTW, I took a pic from the top side of the wooden adapter. (This one was removed from my oldest Impala, destined for the junk yard.) In the pic, you can see 3 mounting holes on each end, outside of the speaker, and 6 more inside the speaker diameter, 3 fore and 3 aft. I used stainless hardware and lock-nuts with the nylon inserts. A bead of silicon caulk was used to seal the wood to the rear deck (ala air suspension). You'll need to remove the rear package tray during the installation. HTH.

Doug

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