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Kenwood DMX706S install issues

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Old Aug 9, 2021 | 09:20 PM
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Default Kenwood DMX706S install issues

I was excited to finally get started on this head unit install. I did the PAC PR5-GM11 interface connections a few days ago. I carefully took console and dash bezel apart without issue. Seems like simple plug and play but I have the following issues:

1. no sound other than beeper, radio will tune in but no sound. I assume connecting to the "amplified factory amp" is correct.
2. Bluetooth "select device" is grayed out so I cannot connect phone.

Steering wheel controls will turn volume up and down and change station (but cannot hear anything).

Any ideas?

I have not connected any cameras yet.




Last edited by rybern; Aug 9, 2021 at 09:45 PM.
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Old Aug 9, 2021 | 09:39 PM
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Yes, connecting to the "amplified factory amp" port is correct. Have you read the owners manual for the Kenwood to ensure you have all the settings set correctly ? Have you checked all the connections between the interface and head unit to ensure there's no issues there ? The only other thing I can think of is that It's you possibly could have gotten a defective interface (you wouldn't be the first).
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Old Aug 9, 2021 | 10:37 PM
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Originally Posted by madsonp
Yes, connecting to the "amplified factory amp" port is correct. Have you read the owners manual for the Kenwood to ensure you have all the settings set correctly ? Have you checked all the connections between the interface and head unit to ensure there's no issues there ? The only other thing I can think of is that It's you possibly could have gotten a defective interface (you wouldn't be the first).
Thank you for the response. Hmmm, "read the owners manual".... not sure I can say I've done that completely. I've always found head units to be pretty intuitive.

I purchased the interface off Ebay. It was NIB. Do you know of a way I can test it? I have it set on "3" for Kenwood.
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Old Aug 9, 2021 | 10:46 PM
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Originally Posted by rybern
Thank you for the response. Hmmm, "read the owners manual".... not sure I can say I've done that completely. I've always found head units to be pretty intuitive.

I purchased the interface off Ebay. It was NIB. Do you know of a way I can test it? I have it set on "3" for Kenwood.
No, don't know of any way to test them other than sending it back to PAC and having them check it out. The problem with buying electronics off eBay is that if they're not a factory authorized retailer, a lot of times they won't cover them under warranty. One other question, didi you disconnect the battery prior to hooking everything up ?
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Old Aug 9, 2021 | 10:51 PM
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Most likely your amp is not turning on. Is the amp turn on wire connected properly? It is usually labeled "remote wire" and is blue with white stripe.
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Old Aug 9, 2021 | 10:54 PM
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Originally Posted by TorchRedFred
Most likely your amp is not turning on. Is the amp turn on wire connected properly? It is usually labeled "remote wire" and is blue with white stripe.
Good point Fred, I didn't think about that. It's kinda hard to tell from his pictures, but this could be it (red arrow).




Last edited by madsonp; Aug 9, 2021 at 11:02 PM.
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Old Aug 9, 2021 | 11:24 PM
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Yeah, that might be it. Hard to know for sure from the picture. If so, easy fix.
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Old Aug 9, 2021 | 11:35 PM
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Originally Posted by TorchRedFred
Yeah, that might be it. Hard to know for sure from the picture. If so, easy fix.
Yep, he would be the first one who didn't hook it up, seen people make that mistake a few times. This should be connected to the Blue/White P. CONT wire from the radio harness.

Last edited by madsonp; Aug 9, 2021 at 11:58 PM.
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Old Aug 10, 2021 | 06:35 AM
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Originally Posted by madsonp
No, don't know of any way to test them other than sending it back to PAC and having them check it out. The problem with buying electronics off eBay is that if they're not a factory authorized retailer, a lot of times they won't cover them under warranty. One other question, didi you disconnect the battery prior to hooking everything up ?
I did not disconnect the battery. Maybe there is something to that, I'll disconnect the battery for a minute and reconnect it. I have reconnected the OEM head unit and everything works like it's supposed to.

Originally Posted by TorchRedFred
Most likely your amp is not turning on. Is the amp turn on wire connected properly? It is usually labeled "remote wire" and is blue with white stripe.
Yeah, that fixed the sound. Thanks for noticing that.

I still have no bluetooth connection. "Select Device" is greyed out so I'm not able to select it.
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Old Aug 10, 2021 | 07:10 AM
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I disconnected the battery for a good minute or so to see if it made a difference and still not bluetooth.

I would have loved to purchase all of this from Crutchfield so they could hold my hand through this. I can return the interface but would obviously have to unwire everything, purchase a new one and rewire everything. I suppose I could purchase another interface before I remove the questionable one and simply swap it out and return the bad one(assuming one is bad).

It's funny that I've been installing car audio stuff since the early 90's and something like this simple install is kicking my butt. Times have changed and gotten more sophisticated. I haven't even gotten to the cameras yet, LOL.... the OEM radio isn't looking so bad.
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Old Aug 10, 2021 | 09:49 AM
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Originally Posted by rybern
I disconnected the battery for a good minute or so to see if it made a difference and still not bluetooth.

I would have loved to purchase all of this from Crutchfield so they could hold my hand through this. I can return the interface but would obviously have to unwire everything, purchase a new one and rewire everything. I suppose I could purchase another interface before I remove the questionable one and simply swap it out and return the bad one(assuming one is bad).

It's funny that I've been installing car audio stuff since the early 90's and something like this simple install is kicking my butt. Times have changed and gotten more sophisticated. I haven't even gotten to the cameras yet, LOL.... the OEM radio isn't looking so bad.
Great, glad to hear you have sound now, Fred was right on the Blue/White wire then. I'm sure the Bluetooth issue isn't the interface as that's all done through the head unit. Did you ground the Lt. Green parking wire from the head unit to the chassis, or connect it to the Lt. Green parking brake off the interface? What type of phone are you trying to connect, Apple iPhone or Android ? Do you have the phones bluetooth on and set to where it's discoverable ? Have you looked at the head unit instructions thoroughly for connecting to Bluetooth ?

Last edited by madsonp; Aug 10, 2021 at 09:57 AM.
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Old Aug 10, 2021 | 09:57 AM
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Also, not sure if this is the issue, but do you have the parking brake wire connected properly? Some features will be unavailable unless the head unit knows the car is not moving and parked. You need to have the parking brake wire connected or properly bypassed.
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Old Aug 10, 2021 | 10:26 AM
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Also, if the parking brake is connected properly, make sure you are in the correct head unit settings to connect a device. If you don't have any devices connected, and you try to select bluetooth as an input, it may be greyed out because no device is connected and therefor no bluetooth device is available. Either way, the bluetooth thing should be an easy fix. Don't get overly frustrated to the point where you overlook the obvious. You are almost there.
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Old Aug 10, 2021 | 10:28 AM
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Originally Posted by madsonp
Great, glad to hear you have sound now, Fred was right on the Blue/White wire then. I'm sure the Bluetooth issue isn't the interface as that's all done through the head unit. Did you ground the Lt. Green parking wire from the head unit to the chassis, or connect it to the Lt. Green parking brake off the interface? What type of phone are you trying to connect, Apple iPhone or Android ? Do you have the phones bluetooth on and set to where it's discoverable ? Have you looked at the head unit instructions thoroughly for connecting to Bluetooth ?
Ah, that's refreshing and makes sense. I grounded the light green wire to one of the screws on the back side of the head unit. I'm not sure about the light green wire on the interface..... could it be another one of the wires in the bundle that is labeled "Nav"? That "Nav" label sure has caused me some grief. LOL. My phone is a Galaxy S21. I didn't have my phone set to "discoverable" because I was waiting to turn on the "search for device". Maybe that's the issue.

1. Does the light green wire from the interface need to be hooked up somewhere? I'm wanting to bypass the parking brake and have the Lt/grn grounded to the rear of the receiver.
2. When I get home, I'll attempt to connect my phone by turning on the search for connection on my phone.
3. Anything else?

I REALLY appreciate the help.



Originally Posted by TorchRedFred
Also, not sure if this is the issue, but do you have the parking brake wire connected properly? Some features will be unavailable unless the head unit knows the car is not moving and parked. You need to have the parking brake wire connected or properly bypassed.
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Old Aug 10, 2021 | 10:35 AM
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Originally Posted by rybern
Ah, that's refreshing and makes sense. I grounded the light green wire to one of the screws on the back side of the head unit. I'm not sure about the light green wire on the interface..... could it be another one of the wires in the bundle that is labeled "Nav"? That "Nav" label sure has caused me some grief. LOL. My phone is a Galaxy S21. I didn't have my phone set to "discoverable" because I was waiting to turn on the "search for device". Maybe that's the issue.

1. Does the light green wire from the interface need to be hooked up somewhere? I'm wanting to bypass the parking brake and have the Lt/grn grounded to the rear of the receiver.
2. When I get home, I'll attempt to connect my phone by turning on the search for connection on my phone.
3. Anything else?

I REALLY appreciate the help.
If you have the Lt. Green wire from the head unit connected to the chassis/ground, this should enable the bypass so you don't need to connect the Lt. Green wire from the interface to anything. Let us know how things go when you get home.
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Old Aug 10, 2021 | 10:40 AM
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Rybern, you just want to make sure all the wires coming from the head unit are connected. Any leftover wires on the interface are a non issue. The interface is built to be compatible with all different head units, some with navigation and some without. So all the wires coming from the interface don't have to be connected.

If the parking brake wire is bypassed correctly, then it must be something in the settings. Check your owners manual for proper procedure to connect a phone. My guess is you are not in the correct settings. If you are and it is still greyed out, then check the parking brake wire again.
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Old Aug 10, 2021 | 11:03 AM
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Originally Posted by TorchRedFred
Also, if the parking brake is connected properly, make sure you are in the correct head unit settings to connect a device. If you don't have any devices connected, and you try to select bluetooth as an input, it may be greyed out because no device is connected and therefor no bluetooth device is available. Either way, the bluetooth thing should be an easy fix. Don't get overly frustrated to the point where you overlook the obvious. You are almost there.
Thank you. I'll look into that this evening.
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Old Aug 10, 2021 | 11:16 AM
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Originally Posted by rybern
Thank you. I'll look into that this evening.
In the mean time, I also suggest you thoroughly review the Bluetooth section of your owners manual starting on page 51 to see if you can determine what you're doing wrong, also if applicable make sure the software is up to date on your phone. https://pdf.crutchfieldonline.com/Im...113DDX5706.PDF

Last edited by madsonp; Aug 10, 2021 at 11:37 AM.
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Old Aug 10, 2021 | 01:25 PM
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Originally Posted by madsonp
In the mean time, I also suggest you thoroughly review the Bluetooth section of your owners manual starting on page 51 to see if you can determine what you're doing wrong, also if applicable make sure the software is up to date on your phone. https://pdf.crutchfieldonline.com/Im...113DDX5706.PDF
I think your right. I'm overlooking something.
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Old Aug 10, 2021 | 07:00 PM
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I connected the USB and I got a message that says "Stop your car......". So it's grayed out because it thinks the parking brake isn't applied. Lt green is grounded to back of HU.


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