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  #1  
Old 07-24-2009, 01:13 PM
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ATTN: Matt and speaker Guru's HELP

I have the Stock Boston Acoustic stereo in my jeep with a Kicker CVR 12" sub and Kicker 750 Watt mono amp.

I also upgraded my dash speakers with 3.5" Infinity Kappa Series speakers with tweeters. (over stock steal at $40)

So now after 2 months with them i am noticing at low volume that they sounds very crackly and staticy. Vol 8 Bass 0 Treb 2 Mid 2 is how its setup today with my Ipod (ipods volume has no effect on stereo). If i crank it up it seems like it goes away with most music but that might juse be that i cant hear the distortion.

it happens with everything now, Rock, Rap, Country, Classical everything.

Are they blown? WTF happened? Should i put the stock ones back in?
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  #2  
Old 07-24-2009, 02:24 PM
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Re: ATTN: Matt and speaker Guru's HELP

In my experience, it's pretty rare to simultaneously blow multiple speakers. If you blow one, though, it's probably a safe assumption that you are pushing power levels that is capable of blowing more.

IMHO, it sounds like you are picking up noise somewhere. I had RF interference on my bluetooth through my head unit because I ran it down the same side of the Jeep as the satellite radio antenna.

However, to test if the speakers are blown, use the fade and balance functions on your deck to isolate the sound to each individual speaker. If one is worse than the others, it is probably blown. If they all sound the same, then maybe throw a stock speaker back into one speaker spot and repeat the fade/balance isolation process. If it's gone, you know it's the speakers. If it's still there, you're more than likely looking at some sort of interference.

You might also look into impedance differences between the stockers and the Kappa's. I know that a few years back Infinity changed the impedance of their aftermarket speakers from 4-ohm to 2-ohm. I also know that the stock amplifier splits the front channel between the front door speakers and the dash speakers. If your impedances aren't correct, you may be asking for static (though I can't say for sure that this is the case).
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  #3  
Old 07-24-2009, 03:00 PM
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Re: ATTN: Matt and speaker Guru's HELP

The issues is that this is a new issue, that started this week and only happens when i use my ipod and i only installed the interface this week. So could it be an interference with the Iopd? I dont seem to notice it if i use a CD or the radio now that i think of it. How would i stop interference? The i pod sits next to the 4L lever switch or in the cup holder but i could put it in the center console and see if that makes a difference.
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Old 07-24-2009, 03:02 PM
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Re: ATTN: Matt and speaker Guru's HELP

I say just put the stock ones back in.
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Old 07-24-2009, 03:05 PM
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Re: ATTN: Matt and speaker Guru's HELP

Quote:
Originally Posted by NHWK05 View Post
The issues is that this is a new issue, that started this week and only happens when i use my ipod and i only installed the interface this week. So could it be an interference with the Iopd? I dont seem to notice it if i use a CD or the radio now that i think of it. How would i stop interference? The i pod sits next to the 4L lever switch or in the cup holder but i could put it in the center console and see if that makes a difference.
Well then I am sure it's in your iPod interface. A lot of the poorer quality iPod interfaces are going to have noise no matter what you do. It sounds like you have to control the iPod from the iPod itself. That's too bad. Mine can be controlled from the head unit. Since I could control it from the head unit, there was no sense in mounting the iPod where I could reach it, so I routed my cable to the glove box and I just toss my iPod in there.

You might try an in-line noise eliminator, but it sounds like with your setup that you aren't running near any high-noise lines. You might have just gotten a poor-quality interface.
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  #6  
Old 07-24-2009, 03:10 PM
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Re: ATTN: Matt and speaker Guru's HELP

Quote:
Originally Posted by LipschitzWrath View Post
Well then I am sure it's in your iPod interface. A lot of the poorer quality iPod interfaces are going to have noise no matter what you do. It sounds like you have to control the iPod from the iPod itself. That's too bad. Mine can be controlled from the head unit. Since I could control it from the head unit, there was no sense in mounting the iPod where I could reach it, so I routed my cable to the glove box and I just toss my iPod in there.

You might try an in-line noise eliminator, but it sounds like with your setup that you aren't running near any high-noise lines. You might have just gotten a poor-quality interface.

My Ipod interface is far from poor quality, i got it at a local audio shop for $120, its in line with the stock 6 disc changer, plugs in to the large connector and then routes a wire for the ipod where ever i want it. Every connector is well made all connections are soldiered and shinktubed and its all nice and neat. took 10 mins to install.

Should i remove the headunit again and maybe move the interface module or is there a wrap or something i can put around it pr between it and the head unit?

This is the unit i have. DPX Technology plus From PIE
Part number CHRY04/PC-POD2

Retails $140 plus shipping, i got it for $120. Scroll down the page.
http://www.autotoys.com/x/catalog/_CHRYSLER_CHRY_04_PC_POD_2_PIE_IPOD_ADAPTER_RETAIN S_FACTORY_S_p_10817.html
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Old 07-24-2009, 03:15 PM
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Re: ATTN: Matt and speaker Guru's HELP

Quote:
Originally Posted by NHWK05 View Post
My Ipod interface is far from poor quality, i got it at a local audio shop for $120, its in line with the stock 6 disc changer, plugs in to the large connector and then routes a wire for the ipod where ever i want it. Every connector is well made all connections are soldiered and shinktubed and its all nice and neat. took 10 mins to install.

Should i remove the headunit again and maybe move the interface module or is there a wrap or something i can put around it pr between it and the head unit?
So it's hooked up in a pass-thru configuration with changer? That might be a clue. Is there a pass-thru on the iPod interface as well? If so, maybe swap around how they are hooked up. For example, what you have now is:

Head Unit --> CD Changer --> iPod Interface

You might wanna try (if you can):

Head Unit --> iPod Interface ->> CD Changer


Other than that, all I can say (and I know it doesn't help) is that you got noise. If you're ambitious, throw the stockers back in and see if that cures the problem.
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Old 07-24-2009, 03:18 PM
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Re: ATTN: Matt and speaker Guru's HELP

Ok, it is setup like this starting at the HU

Head Unity(6 disc changer is built in)---> Ipod Interface-----> Factory wiring.

Check the link i posted.
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Old 07-24-2009, 11:08 PM
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Re: ATTN: Matt and speaker Guru's HELP

Is this "noise" happening while using other media sources (i.e CD, Radio, etc.)..?

If so, then obviously you can rule out a specific source as the problem.

I'm with whoever suggested that the Infinity is a lower impedance driver (2-ohm) compared to, what I would guess, is a 4-ohm load accpeted by the factory amplifier. You can put the factory speakers back in and if the problem is no longer an issue then you can be certian that there is no issue with the iPod cable, receiver, or the amplifier, but the aftermarket drivers themselves. Again, check the impedance of the Infinity's - as someone else said, they have shifted to lower impedance drivers.
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Old 07-25-2009, 07:00 AM
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Re: ATTN: Matt and speaker Guru's HELP

I am going down to CT today so i will have a bit of time to test if it happens when using CD, Radio or Ipod. But i think, Think, its only happening when using the Ipod.

I will try re installing the stock speakers next week and see if that makes a difference. But i have had the speakers in for a while and only noticed this issue this week when i installed the interface cable so i think it might be interference there. We will see.
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Old 07-25-2009, 12:35 PM
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Re: ATTN: Matt and speaker Guru's HELP

Tested it for a few mins today. The interference or distortion only happens when using the iPod.

The volume and EQ on the ipod itself make no effect on the sound in the jeep. Everything is installed correctly as well and all connections are tight. WTF.
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Old 08-04-2009, 05:02 PM
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Re: ATTN: Matt and speaker Guru's HELP

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Originally Posted by NHWK05 View Post
Tested it for a few mins today. The interference or distortion only happens when using the iPod.

The volume and EQ on the ipod itself make no effect on the sound in the jeep. Everything is installed correctly as well and all connections are tight. WTF.
Hmm, this is odd. Have you tried another iPod...? That's the next thing I'd try.
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