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Old 04-29-2012, 07:16 PM
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2007 Grand Cherokee Stereo Upgrade

So I have had my Grand Cherokee now for almost 2 years and have decided to upgrade the entire Boston Acoustics sound system. The following are the components I am using.

Head Unit - Pioneer AVH-4400bh
Amp - Alpine PDX-5
Fronts - Boston Acoustics SR60 components
Rears - Boston Acoustics SR65 coaxials
Sub - Boston Acoustics G310-44

Everything went well with running all the wires to the doors and the 4 gauge power wire to the back. When we went to turn on the radio.... nothing, dead! We have 12 volts from the 12v constant but there is nothing coming from the 12 volt ignition. When we supply 12 volts directly from the battery to the 12v ignition the radio turns on and all is good. Just cant figure out why no 12v coming from ignition. I have already checked the fuse for the radio under the dash and it is good. Any help on this would be greatly appreciatted.

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Dan
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Old 04-30-2012, 12:20 AM
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Re: 2007 Grand Cherokee Stereo Upgrade

You may be using the wrong wiring harness for a Laredo. Youll need a PAC canbus adapter. But if you are not using factory wiring Id just splice in the remote wiring into the left 12v socket.
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Old 04-30-2012, 05:57 AM
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Re: 2007 Grand Cherokee Stereo Upgrade

I didn't think I needed the CAN Bus Harness because I was not using the existing wiring. The only thing I need off of the harness is Constant Battery +, Ignition, and Ground. On the harness I bought there is a remote turn on (Blue White Stripe) is this the wire you say to splice into? I am going to take my multimeter out and test this wire to see if it works with the ignition.

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Old 04-30-2012, 10:00 AM
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Re: 2007 Grand Cherokee Stereo Upgrade

In 2007 there is no Ignition wire behind the radio, the factory stereo was turned on by Data via the CANBUS system. You'll need to tap into the Left Cig lighter for your ignition source.
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Old 04-30-2012, 11:47 AM
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Re: 2007 Grand Cherokee Stereo Upgrade

This exactly what I did. Works and sounds great!

Thanks JMLoughrey for the tip

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Dan
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Old 04-30-2012, 04:32 PM
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Seriously? Did I not say that in my first reply?
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'05 HEMI WK
Custom Long Tube Headers
Airaid Shorty Intake
Custom Exhaust
Dyno Tuned on mi-grade pump gas:
Baseline: 241whp
Final: 271whp

My Audio Build
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Old 05-01-2012, 05:43 AM
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Re: 2007 Grand Cherokee Stereo Upgrade

Sorry remmy I misunderstood your statement. When I saw the word "remote" I thought I was looking for some kind of remote turn on. But now that I go back and re-read your post it says exactly what JMLoughrey again sorry.

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Old 05-01-2012, 07:54 PM
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No worries. When I read it I was like "huh? Lol".

Regardless. I say eff it and just twitch the Boston's system and require the whole thing with way better gear like I did.
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Custom Long Tube Headers
Airaid Shorty Intake
Custom Exhaust
Dyno Tuned on mi-grade pump gas:
Baseline: 241whp
Final: 271whp

My Audio Build
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