If you are like me and hate being told that something is impossible to do and you own a 2004 Chevy Impala nad your stock Radio keeps shutting itself off at random when you are driving and turns on after you shut your car off then this instructable is for you .

This instructable is for people who own a 04 impala with a BOSE FACTORY AMP , since Chevy used several different vendors for the amps im not sure if the wiring will be the same.

Step 1:


16 Wire nuts (more if you plan on trying to get the factory tweeters to work)

Wire cutters/strippers

Eletrical tape

The ability to crawl into your trunk and stay there for a few mins
<p>I checked and I don't have a short. I'm going to buy some male to male jumper cable. What size should I get, 200mm, 100mm, 50mm, etc.?</p>
<p>whatever gauge wire is on the harness will work (sorry I do not know the gauge of wire)</p>
#1.) If your radio is cutting off due to the amp, you have a short.<br>#2.) &quot;You cant connect the front tweeter, or so i was told.&quot;? The front tweeter? Really? As if its separate from the door speaker?<br>#3.) Your wiring diagram is off, and your hand written one is not very intuitive.<br>Rear Speaker +'s @)are the same on GM, the grounds will be different. Also, in A3 is where the the White wire goes, not B3, and it is NOT Antenna Signal Sensor, but rather ACC Power on.<br>I just finished my wiring on my Canadian Factory Built 2004 Impala Base 3.4 Police Suspension Package, until i put a digital signal processor in to add back in the lost sound and cancel out/reduce more noise.
#1.) That could also be the case, but I did not have a short, I was rewiring the factory harness to an aftermarket stereo so I did not have to buy an expensive bypass module.<br>#2.) Yes, The Tweeters have a separate Positive (+) and Negative (-) Wires for each tweeter, I do not know if they are &quot;separate&quot; from the speaker themselves, but they do have &quot;separate&quot; wires <br>#3.) It was the correct wiring diagram that I found for my car, and I also stated that it could vary. If your car was a cop car previously then it has different parts in it ranging from a larger shorter axle on one side of the vehicle to possible different wiring. As I stated in this instructable If you do not have the 3.4l base (which would include the police model as being different) model then this diagram will be different from what you have
Thank you for the information very helpful
Im tried to install a after market stereo and no sound and then i lut orginal back and no sound but power and no chime whats that
<p>not sure, did you cut any wires? is this an 04 impala? is the setup STOCK? if you answer no to any of these I cannot help, sorry. But remember that if it is a 04 Impala, ALL of the chime features, oil sensor functions, and more are in the factory stero, that is one of the reasons that it is still 2 dim instead of just one. </p>
I do not know . I bought the module at my local Walmart. it will say it is for GM vehicles for a specific year-to a specific year
What is the part number for the stereo replacement interface?
Soni connect A1 to B1 or A1 to B12?
<p>A1 should go to B1 as both of these are Ground Cables </p>
<p>you have to cut these? Im confused. It doesnt say in the intructions.</p>
<p>it says so in STEP 5. </p>
<p>I connected a1 to b1 and a3 to b3 and now i have sound but REALLY low sound. So its sounds like the tweeters are not on even worse though. The wires connecting back to the large harness are the same ones that were on originally because of the quick splice.</p>
<p>If you used quick splices the little plug should NOT be plugged in even <br>if you did not cut any of the wires, if you did cut the wires then it <br>should look like STEP 9, where the plug is completely cut off. The <br>bypass and reintergration takes care of the signals going to and from <br>the amp via the large plug, if you still have the little connector <br>plugged in, unplug it, and make sure all of the wires you have togehter <br>in the quick splices are correct. It should work for you</p>
<p>Yes the little plug is gone. The original wire from the large is plug is still attached going to the quick splice all the way through. So some quick splices have 2 wires and four have 3 wires because of tweeters. Im thinking maybe I messed up on the tan wires. If 1 color wire is wrong do they all not work or will they sound super muffled? Its either I messed up the colors or I did not reintegrate the tweeter properly. Like I said before I have sound from all the speakers but only if you put your ears to them you can barely hear them. Thanks for your help and time. I really appreciate it.</p>
<p>if you are having problems using the quick splices I would recommend that you take them all off and try the cutting method that I have done in this instructable, go wire by wire, and it should work for you </p>
<p>i did that on the front speakers already today with no luck. Do I need to do anything with the white antenna wire? </p>
<p>no, Please see the diagram on STEP 5, as it shows exactly what wires you will be using to connect to the wires on the other harness</p>
<p>I have my aftermarket amp hooked up to the remote wire from my aftermarket deck. Do you think that is why I'm only getting low volume? If i remember correctly I only hooked up the remote wire to my amp. I dont remember if you had to connect your aftermarket deck remote wire to the new chime unit.</p>
<p>Naelynn, if you are using an aftermarket amp this WILL NOT WORK. This instructable is only for the FACTORY amp that came with the car as explained in the beginning of the instructable. Unfortunately I do not know how to do this with an aftermarket amp </p>
<p>Im only using a mono amp for my 12 in subs not for the 4 speakers.Im going to check tomorrow to see if i spliced in both amp wires to the deck.</p>
<p>yes, you have to cut and connect almost all of the wires to each other as per the instructions, please be sure to follow the diagram CAREFULLY, if you connect a wrong wire to another it will not work at all. Also this only works for 2002-2005, if most of or all of your wires are different colors, then you need to find its correct diagram so that you can complete this properly </p>
<p>also is your car 2002-2005? if not this diagram will not work for you </p>
<p>There are 2 right front (-)....misprint?</p>
Thanks for this post, it helped greatly. I installed a Pioneer FH-X720BT and Kicker replacement 6.5 and 6x9 speakers. After installing them the volume was low and very distorted. I read this post and first tried jumper wires between the two female amp plugs to see if this would solve the problem before going any further. With one speaker jumped it sounded great so i proceeded. I followed the steps in this post with the exception of cutting the wires, instead i used quick splices. I had to use 14-18 ga quick splices since i could not find any 18-22 ga quick spices at any of the auto parts stores nearby. If you do this ensure that the splice blades are completely depressed to ensure the insulation is properly broken on the stock wires due to their small guage. I also jumped the tweeters into the respctive front spaker wire and they work great. Again, thanks for the help, i would have never thought to try bypassing the amp.
<p>Hope you guys see this cause its a little late. I used quick splices on this job like you. I jumped the tweeter and speaker in the same quick splice. So i have the little adapter gone now and only the large plugged in with the other wire jumped in. I did not do the first set of steps because i didnt have to cut the wire. So I figured that i did not need the extra wire to bridge it back to the large adapter. I am getting no sound out of any of my speakers. Do I have to do the initial &quot;round about&quot; before I use my quick splices?</p>
<p>yes you do, the first step bypasses the amp so that your aftermarket radio will work, and the second step reintergrates the amp so that it does not sound like the volume is on low when it is on HIGH, also as Raymond states you need to make sure that the blades on the quick splices are FULLY DEPRESSED so it fully contacts all of the wires. As I used wire nuts I did not have to worry about that </p>
<p>I forgot to tell you I bought this </p><p>AXXESS GMOS-04 ONSTAR INTERFACE FOR AMPLIFIED GM SYSTEMS</p><p>My speakers worked before with my aftermarket deck just low volume and distorted. Before I redo everything I wanted to ask you first.</p>
<p>my system is non GPS, just the stock, the low volume is because the system has tweeters and the amp that is not registering with your aftermarket unit. The bypass and reintegrating of the amp and tweeters fixes this issue </p>
<p>your welcome, glad I could help </p>
<p>Glad I could be of help. I will soon be replacing the factory speakers on my Impala as well (as they are now 11 years old and do not sound so good). that should be an interesting Instructable for me to make </p>
I need help...have my radio on and everything...just no soundsmh
My amp doenst work so if i have a powerful aftermarket radio/headunit i could just do steps 1-6 and it should sound alright...correct?
<p>unfortunately no, the speaker setup form the factory utilizes tweeters and without the amp loped back in activating the tweeters your radio will work, but it will sound like the volume was turned way down... that is why when I first did this I reintegrated the amp back in on top of the bypass. so to answer your question YES it will work, but it will sound horrible (the tweeters will not work) if you do not follow all of the steps </p>
I just dont want to use the factory amp because it doesnt work good in the cold the volume is way low so i want my aftermarket radio to power my aftermarket speakers that have tweeters
<p>I just have the stock speakers so I do not know, if you try let us know the results </p>
I replaced all the apeakers though with twitters in the door and deck speakers included
By the way thanks alot for posting this!...this is the only thing i have ever found online about this
<p>I took me a lot of research to find all of this information as well. glad I could help out others</p>
My amp doenst work so if i have a powerful aftermarket radio/headunit i could just do steps 1-6 and it should sound alright...correct?
I wanted to thank you for making me the hero of my family we now have a radio again!
<p>you are welcome! glad I could help out someone else with this problem</p>

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