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2007+ Tahoe Add-an-Amp

Old August 6th, 2010, 12:24 PM
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anyone want to make a T harness vs tapping the wires?

it would just need 2 factory clips and 8" of wire between them w/the taps in place..?
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Old August 8th, 2010, 2:36 PM
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Its a nice idea but I'm guessing the price of the connectors and pins needed will price the harness out of practical range, verses the .10 cents for the T-taps...
the T-taps can be left in place and should not affect anything once the optional equipment is removed...

You could contact your local dealerships part department and see if they can even locate the connectors needed, it would be my guess they will only come in a harness form, costing way more then the effort to remove them and make a new harness with the salvage connectors....
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Old August 9th, 2010, 7:18 AM
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my buddy bought a $50 harness just to not have to tap into his factory lines... i'd spend $40 on this... each connector should be like $2.00...?

I just really, reallly don't want to splice factory stuff (I know how to, I do this stuff all the time), I just really like knowing I can remove stuff from this tahoe...
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Old March 2nd, 2012, 7:39 AM
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i used this post to find my bose amp. you are a lifesaver. excellent write up
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Old June 19th, 2012, 7:09 PM
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Default Power and amp turn on info

Thanks for the post, this saved me HOURS of work putting a bazooka tube into my 2010 suburban with Bose.

I did find a simpler way to get power and remote turn on for the amp from the larger harness that is right beside the amp inputs.
The red with white strip wire on the bottom of that harness is constant +12 and the orange with black tracer wire coming from that harness is the amp turn on wire. Since my truck did not have the position 0 wire at all I had to find an alternative and this made for a super clean install where everything is tapped in just under the cup holder in the center console.
I just tapped into these with the bazooka universal FAST harness and BOOM it was done.
Thanks again for the GREAT post!
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Old March 18th, 2013, 11:50 PM
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I got a 2008 tahoe i want to know what are the speakers colorcodes from the bose amp because i want to run wires from the center speaker wires to my new amp
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Old February 16th, 2017, 12:27 PM
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Default hi-low bypass

Does anyone have any specific hi-low units they use like the Rockford fosgate ones or does it matter? I got a 2012 escalade esv platinum that I got the JL stealthbox with the 2- 10w1v3-4 in it and a old school 500 monoblock that I have from one of my previos builds. On the old school stuff I have built a lot but never really got into new stuff. I usually swap to a deck that works. In saying that I just want to make sure I hook up a good one along with I will mount a bass **** to control it from the front that plugs into the amp. Thank you in advance I know this is a old thread but a good one to say the least. Alan
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Old March 11th, 2018, 6:58 PM
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Default 03 Chevy Silverado

Originally Posted by socaliguy81 View Post
Well, after a lot of searching for the Bose Nav/DVD/Rear Ent wiring diagram, I finally found the only useable signal for adding a sub amp. The issue I had was that tapping the speaker wires on the Bose system changed the impedence too much and threw the Bose amp into a state of confusion. The only logical reasoning behind this is that Bose uses an auto-clip-sensning system that basically tells the amp how much stress the speaker is under through the language of impedence. Notice how when you rotate your volume **** all the way up, it just magically knows when to stop? I realized also that adding an amp for mids and highs would have to be done by grabbing the low level signal before the Bose amp FYI.
Attachment 15201


The center console subwoofer is practically located under the dash. After learning that the Bose amp was in the center console at the rear under the storage area, I figured there must be high level sub signal traveling through the center console.
Attachment 15202
Attachment 15203

Sure enough, I popped out the very easily accessible storage tray and spied a 4-wire harness. You might be thinking only 1 pair of wires go to a sub. Well, as I learned when adding an amp to my CTS w/ Bose, they like to run 2 pairs, one for each voice coil. All you have to do is tap each pair and run to a line-level adapter or hi-lo converter as some of you know them by. The wiring is as follows:

***These colors are on the amp side of the plug. The sub side has different colors all together.***

Voice Coil #1 aka Channel 1
+Dark Blue w/ White Stripe
- Light Green w/ Black Stripe
Voice Coil #2 aka Channel 2
+Dark Green
-Light Blue w/ Black Stripe


***THESE ARE SUB LEVELS NOT FULL RANGE..TAPPING THESE WIRES ARE ONLY FOR INSTALLING SUBS***

**Since it is easier to tap the larger gauge wires on the sub side of the harness, just use the plug's corresponding letters (ABCD) to match the wires up.**
Attachment 15204
There is plenty of room under most second row seating for one large amp or multiple smaller amps. Even the factory beauty board can be cut to easily flush amps in and hide wiring.

Attachment 15205
Attachment 15206

The 12Volt Main and 12Volt Accessory/Ignition wire locations are pictured below.

Attachment 15207
Attachment 15208
Attachment 15209

Attachment 15210
Attachment 15211
Attachment 15212

I am a professional installer who works out of Southern California and would love to help out if anyone needs.

760-773-8728 Travis Brown
[email protected]
2003 Chevy Silverado your write-up was great I did everything you said I have a slight problem I'm guessing that the color code that you gave was for line-level because I put the line level converter in and I hardly have any sound coming out of the subwoofer is that correct?
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Old September 3rd, 2018, 1:07 PM
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Exclamation Still waiting for access to my account!

For 8 years now, ChevroletForums.com has blocked me from accessing my account. The account I originally posted this sticky thread on. Please, if you were one of the 144k+ people who have been helped by my write-up, or one of the hundreds of people I've helped over the phone since 2010, please take a moment to make this go viral, write the support admins, etc

Thanks guys!
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Old September 3rd, 2018, 3:50 PM
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Originally Posted by socaliguy811 View Post
For 8 years now, ChevroletForums.com has blocked me from accessing my account. The account I originally posted this sticky thread on. Please, if you were one of the 144k+ people who have been helped by my write-up, or one of the hundreds of people I've helped over the phone since 2010, please take a moment to make this go viral, write the support admins, etc

Thanks guys!
Let me take a look at the account
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