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PostPosted: Thu Jun 05, 2014 7:28 pm 
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Ok I just got my new 2002 pontiac bonneville ssei. I am wanting to replace the factory stereo and put in a new head unit. I got the head unit in the mail along with the aftermarket wiring harness adapter to the car and the radio. Here the problem. First things first I I needed to get the get head unit running. I have done several new head unit installs along will full speaker relPlacement and subwoofer installs. In several cars and havnt had any problems with it t all usually it's the easiest pArt.
Well the adapter harness has 3 ground wires (black) and 2 12 volt (yellow) wires for power. I tried everything to make it work. I hooked them up with a solid solder. Just the red yellow and black. The HU didn't turn on. I didn't know why. I tried hooking all the grounds and powers up together. Didn't work. I tried each by themselves. Didn't work. I then decided to rule out a defective head unit by testing it by hooking it up to my fuse box. It works fine. So that rules out a defective head unit. So I called the manufacturers if the adapter harness and they ruled it as a factory defect in the adapter but I'm not convinced yet. I just think I'm doing something wrong. So help with that would be appreciated. Cuz I'm getting frustrated Haha.

The other thing is the monsoon system. I'm deciding if I should attempt to bypAss it like is recommended :poke: . Or if I leave it. But here's the deal it'd be SOOOO much easier to leave the factory amp in and just use it. But, I don't want it blow my speakers or the head unit. So. Suggestions? Anyone with experience? Ya.

Also if I do decide tO bypass tHe amp how would I go about doing it?!

Thanks.
Jake

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PostPosted: Fri Jun 06, 2014 12:11 am 
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What adaptor harness do you have? Did you buy a Metra GMOS-09 unit? This will allow the installation to work and retain the chimes and OnStar (although OnStar is the obsolete analog version). If you bought a Sosche GM07B then you lose the chimes and OnStar and you need the wiring diagram for the dock and lock pins to hook it up correctly. I posted this last year so you can try doing a search. As far as bypassing the Monsoon amp it depends if you are replacing the speakers. The 2 on the rear deck are subwoofers, the front doors have a tweeter and mid range, and the back doors have mid range. The crossover for the subs is built into the monsoon amp.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Fri Jun 06, 2014 11:07 am 
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I bought an adapter without the chimes. I didn't really wanna blow 100 dollarsa on a adapter when I could get one for 18$. And my two 6x9s are completely blown. I will be replacing them soon. On your post last year is the dock and lock pins diagram put up? And the only reason I asked if I should bypass the amp is because some people have reported that if they don't bypass the amp it blows their head unit. So ya

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PostPosted: Fri Jun 06, 2014 10:35 pm 
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Bypassing the amp will not blow the HU. Your HU has line level outputs so when you connect the replacement HU to the amp so not use the speaker level outputs, use the line level ones. (with the RCA female plug connectors).

from Right to Left, the top row is B1 to B16, the bottom row is A1 to A16
A1 and A2 - Data Bus - leave disconnected
A3 14V reference - needs to be connected to amp enable to turn on amp
A4-A6 do not connect
A7 and A8 are for the onstar.
A9 aux input common

A10 aux input left - these allow use of an aux input jack if your HU does not have one
A11 aux input right
A12 LR speaker (+) connect to speaker level outputs on the back of the radio - normally not the ones with the RCA plugs
A13 left rear speaker (-)
A14 RF speaker (-)
A15 RF speaker (+)
A16 Ground
B1, B2 battery positive (controlled by retained accessory power) - connect to power lead on radio
B3 - antenna enable - connect to power antenna lead on radio
B4 - Backlight Lamps Control - connect to radio illumination
B5 Ground
B6 - B11 not used
B12 LF speaker (+)
B13 LF speaker (-)
B14 RR speaker (-)
B15 RR speaker (+)
B16 ground - connect to radio ground wire

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Sat Jun 07, 2014 11:29 am 
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I'm a little confused by your newest post, I think you meant to put a "not" to start off the post but I'm not sure. Also confusing me is when you where talking about connecting the replacement HU to "the amp". What exactly do you mean by that?

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PostPosted: Sat Jun 07, 2014 11:02 pm 
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I meant you won't blow the Monsoon if you use the line level outputs from the HU. The wiring diagram above said to use the speaker level outputs but that is only if the car does not have a Monsoon system.
You have to connect the remote-turn on from the radio (used to turn on an aftermarket amp) to A3 on the Dock and Lock to turn on the Monsoon Amp.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Mon Jun 09, 2014 4:42 pm 
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Ok good. Now I just have to figure out what you mean by speaker level outputs haha. And I still can't get my head unit to turn on, I don't know why. I used the wiring diagram you gave me and everything seems right.

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PostPosted: Mon Jun 09, 2014 10:29 pm 
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Check the 2 12V leads on the adaptor harness from the dock and lock with a DMM to make sure they have 12 volts. They are on the retained accessory power circuit so the ignition switch must be in acc or on position for them to have power. If there is no power, check the radio fuse and RAP fuse under the rear seat. Make sure the HU is grounded to one of the ground wires on the adaptor harness. Most aftermarket units have 2 sets of outputs - one to go directly to the speakers that are amplified by the head unit and line level outputs for those using an amp. The line level outputs are usually RCA pin plug. See the manual for your HU for more details. If the volume is too low with the line outputs, you may need to use the amplified outputs, but make sure the volume is turned down when you test them.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Tue Jun 10, 2014 5:42 pm 
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I will have to purchase on of those to check cuz I left mine in another state (I'm working out of state for the summer). Darn it all. As for the fuses I did check them, my factory radio works, but ya my new HU just doesn't want to turn on. So you are saying to use RCA outputs and splice them?

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PostPosted: Tue Jun 10, 2014 11:18 pm 
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Try the RCA outputs first and splice them in to the speaker wires in the adaptor harness and if the volume is too low then use the speaker outputs. You can just experiment with the front channels to save the time of doing all 4.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Wed Jun 11, 2014 9:22 pm 
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I've never spliced RCA cables before is there a good way to do it? What wires would I hook up?

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PostPosted: Wed Jun 11, 2014 11:02 pm 
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Buy a short set of RCA cables preferably with a braided shield, cut them in the middle, use a wire stripper carefully to strip off 1 1/2" of the outer insulation. There is a aluminum or braided shield under it push it back on the cable to reveal the inner wire. Strip about 1/2" off the inner wire - and solder it to the positive speaker wire, tape over it so the bare part does not touch the outer shield, solder the outer shield to the negative speaker wire. Tape everything up and you're done.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Thu Jun 12, 2014 9:28 am 
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And use that to just test them? I don't see how I could run all my speakers from that haha

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PostPosted: Thu Jun 12, 2014 11:30 pm 
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you only need to hook up one cable to test them. You don't have to test all 4 channels.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Fri Jun 13, 2014 9:19 am 
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Ok so it would be purely for testing purposes

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PostPosted: Fri Jun 13, 2014 10:35 pm 
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well you will be able to find out if you need to use the line out outputs or the speaker level outputs to drive the amp without blowing it up. I guessing you will need the speaker level outputs but its better to try the line outputs first.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Sat Jun 14, 2014 3:59 pm 
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I see, I'm getting pretty frustrated with the system and considering possibly just adding my subs without the head unit. It's pretty complicated

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2002 white SSEI Bonneville.
INTENSE FWI

Many beginner level performance mods to come
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PostPosted: Sat Jun 14, 2014 11:49 pm 
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What make and model HU do you have?

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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PostPosted: Sun Jun 15, 2014 6:58 pm 
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http://sc.sonicelectronix.com/wf/click? ... ajNUWp7gr0

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PostPosted: Sun Jun 15, 2014 11:58 pm 
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The instructions are confusing but wires 15 and 16 should be connected to the 2 12V power leads of the dock and lock and 17 blue white goes to the 14V amp reference line to turn on the amp. 14 goes to ground on the dock and lock. You also need to splice one of the 12V positive from the dock and lock to the antenna 12V lead on the dock and lock to enable to antenna module in the headliner or you will get no radio reception. Let me know if that works.

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2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)


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