2006 LR3 No Sound From Radio/NAV/Bluetooth - Land Rover Forums : Land Rover and Range Rover Forum
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 06-24-2014, 08:04 PM Thread Starter
Member
 
Join Date: May 2014
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2006 LR3 No Sound From Radio/NAV/Bluetooth

Hi all:

I've spent countless hours troubleshooting this issue and scouring the web and nothing seems to work. I'm hoping for some feedback here.

A few weeks ago the radio quit working in my LR3. There was no sound for a number of days. After about a week the sound came back on and worked for about 3 days. The radio head unit and nav work fine. I can change the channels and input, however there is no sound. No volume icon displays. Same thing with the NAV. I can input destinations and it will map to them, just no sound. Same thing with bluetooth. It will connect and receive calls, just no sound.

Here's what I've done to this point:

2006 LR3 Sport

Pulled and checked the following fuses both visually and with a fuse checker. All the fuses were fine and in good working order:

Fuse 42: Audio Amplifier
Fuse 43: Radio Frequency Receiver
Fuse 53: Multi-media module, audio unit, DVD player, Video Display
Fuse 58: Telephone, touch screen display, multimedia module

Did a soft system reset by disconnecting the negative battery terminal for 30 minutes. I did this twice - no change in problem.

Did a hard system reset by disconnecting the negative battery terminal, then positive terminal, and connecting the two together for 5 minutes - no change in problem.

Took out the head unit and nav unit to check for loose connections. Disconnected all the wiring and reconnected - no change. There is only one light coming from the back of the fiber optics on the head unit. I've attached a pic, I'm not sure if both are supposed to be lit up or not?

Inspected the amp under the passenger seat. No loose connections. Disconnected the wiring and reconnected- no change. There is only one light coming from the amp wiring. Again, not sure if both are supposed to be lit or not?

Any suggestions? Are there any fuses I've missed? I know on some searches I've done apparently RR have an amp fuse? but I didn't see any other fuses behind the radio head unit, nav unit, or the amp.

I don't know what else to do.
Attached Thumbnails
Click image for larger version

Name:	amp.jpg
Views:	9287
Size:	27.2 KB
ID:	49961   Click image for larger version

Name:	Headunit.jpg
Views:	19026
Size:	83.4 KB
ID:	49969  
xcdiesel is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 06-27-2014, 06:14 PM Thread Starter
Member
 
Join Date: May 2014
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
65 views and no suggestions? C'mon... Somebody has to have heard of or seen this issue.
xcdiesel is offline  
post #3 of 10 (permalink) Old 06-27-2014, 06:56 PM
Senior Member
 
Chafero1's Avatar
 
Join Date: Mar 2014
Location: San Francisco CA
Posts: 109
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Had this issue on my disco 2 not sure if I can relate but my head unit would come on and all lights and stations would come on but no sound then I even changed head unit still nothing went to pick and pull and pulled an amp out of a wreck and boom and nice crisp sound out of my harman Kardon speakers might be worth a try switching out the amp

1999 D2 Bone Stock
146000 Miles
Surco Roof Rack/Ladder
OEM Brush Guard
and a whole lotta patience
w
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Chafero1 is offline  
 
post #4 of 10 (permalink) Old 06-30-2014, 03:29 AM
Senior Member
 
bbyer's Avatar
 
Join Date: Sep 2008
Location: Edmonton Alberta Canada
Posts: 648
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
One red light is all you ever see.

I am inclined to also think the Amp is the problem was well.

The sound signal from the tuner travels via the red light - the optical bus. As best I can determine, the Bluetooth is unrelated to the tuner head, hence if there is no sound from the phone, then again, back to the amplifier being the problem.

If there was no red light at all coming from the MOST connector at the amplifier, then one could say that there is a break in the optical wiring as one break somewhere, no red light light travels - at least I think that is how the MOST works, or not. The source of the red light is the NAV unit by the way. I am certain that the connector going into the tuner head is properly inserted as red light would not make it out and hence down to the amp.

I have heard that it is common for some solder joint to let go inside the amp and then you have to find a new one from a auto wrecker - your best source it seems. That is kind of what the restart of the system for a few days suggests.

You could consider removing the amp, putting it in a deep freeze for a few hours and then plugging it back in; that can often be a quick fix for a cold joint and at least prove out where the problem is. Do not worry about wrecking the amp as we routinely have -40F weather here so the amp is used to being powered on when cold. That procedure can work for hard drives as well.

The link below is to a number of files I have related to the infotainment system- wiring diagrams and the like.

DISCO3.CO.UK Photo Gallery - NAV Radio BlueTooth phone and Rosen DVD

2005 LR3 HSE 4.4L V8 petrol; Traxide dual battery kit; Rear Cargo area LED lighting; PIAA 2500K H11 Yellow Ion fog light bulbs; Patch cellular antenna to underside of interior of glass roof; CounterAct LT-2 capacitive corrosion control system; LLumar AIR80 Blue Low E clear Infra Red heat reducing side window tint; Manual upper rear door cable release; Schrader valve "air in" mod to OEM air tank; Akebono ceramic pads on OEM solid vented rotors; LR4 hitch receiver; Wiggs D4 Bluetooth Module; 3 Blink signal light feature; Clock on the Dash; D4 Backup Camera; 2015/16 Nav Data update.
bbyer is offline  
post #5 of 10 (permalink) Old 07-04-2014, 11:59 PM
Senior Member
 
roverandom's Avatar
 
Join Date: Apr 2007
Location: Alberta,Canada.
Posts: 2,065
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
I have an 06 and had this same exact problem. After beating my head against CANBUS, wiring diagrams and trouble shooting charts for a week it turned out to be a good old fashioned corroded wire. So take a close look at the harness before shelling out for a big ticket item like an amp.

This is where the trouble was found in my 06 HSE.
Open the passenger front door, remove the plastic sill trim that covers the edge of the carpet and take a close look at the wiring harness that runs along that side of the truck under the carpet. Mine was wet, dirty and had a number of damaged wires.

Repaired the harness and everything worked as it should.

Hope that helps.

"Your only supposed to blow the BLOODY DOORS OFF" Charlie Croaker. The Italian Job. 1969.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Matt.
roverandom is offline  
post #6 of 10 (permalink) Old 04-04-2016, 07:35 AM
Member
 
Join Date: Apr 2016
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi XC Diesel

Did you get anywhere. I also have just one lit Fibre on the back of the amp.

Thanks

J
jimmy987654321 is offline  
post #7 of 10 (permalink) Old 06-09-2016, 05:02 PM
Member
 
Join Date: Jun 2016
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Should there be light from the amp ?

Hi, I have a similar problem with my '05 LR3. I do have sound coming from the rear headphone connectors however no sound from speakers.
The SPDIF coming from the head unit does light up (one light) but I have no light coming from the amp SPDIF connector. I took amp out of the car and connected a 12-volt power source to it to see if the SPDIF would light up but it won't light up. So that leaves to believe that the problem is the amp.

Can someone please confirm if the SPDIF fibre-optic connectors on the amp do light up when you disconnect the cable with the car running ?

The Logic 7 are quite expensive on Ebay so I want to make sure that it's normal that no light is coming out from the amp before pulling the trigger on a $350 purchase on Ebay.

Thanks !

Pascal
Paco-LR3 is offline  
post #8 of 10 (permalink) Old 06-10-2016, 06:23 AM
member
 
SafariDave's Avatar
 
Join Date: Feb 2008
Location: Brooklyn, NY
Posts: 1,739
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 131 Post(s)
I realized when the radio would go out, it was do to water getting in through the cowl by the passenger side and the cables getting wet there.
Dave

The City is a Jungle.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Present Land Rovers
1999 LR Disco II SD7 White 150K miles 'The Beach Boy' (PR truck)
2005 LR3/ D3 SE 4.4 Bonatti 'Fancy Professor' (my girl's LA LR3)
2005 LR3/ D3 SE 4.4 Bonatti 'The Rhino'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(my NYC LR3)
De-tangoed Headlights, LR4 Style Grille, Dueler Alenza HL 255/55/19

Past Land Rovers
1999 LR Disco II SD Niagara Grey 'Old Rhino' 200K+ miles (Sold)
1991 Range Rover Classic Green 'The Turtle' 200K+ miles (Sold)
1988 Range Rover Classic White 'The Rust Bucket' (Sold)
SafariDave is offline  
post #9 of 10 (permalink) Old 12-25-2018, 10:03 AM
Member
 
Join Date: Dec 2018
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
broken Ariel socket lead to the stereo, exactly the same problem i have. cant find a replacement Ariel lead and where it goes to
wayne49 is offline  
post #10 of 10 (permalink) Old 02-23-2019, 05:03 AM
Member
 
Photoguy's Avatar
 
Join Date: Feb 2019
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Water entering the cabin and drenching the wiring was my issue. Solved by replacing the sunroof drain tubes. Haven’t had a radio problem since doing this, works perfectly.
I bet if caught early on, this would probably solve the issue for most.

2006 LR3 V6 162,000 miles
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Photoguy is offline  
Sponsored Links
Advertisement
 
Reply

  Land Rover Forums : Land Rover and Range Rover Forum > Land Rover Model Forums > Discovery 3 / LR3

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Land Rover Forums : Land Rover and Range Rover Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
2006 LR3 no sound from speakers Landroller Discovery 3 / LR3 7 06-25-2016 11:12 AM
2006 LR3 Nav System Not Showing Icons Reg of Arabia Discovery 3 / LR3 0 12-29-2013 10:49 PM
Problem with Bluetooth and NAV amirSC General Land Rover Discussion 0 08-18-2013 02:26 PM
2006 range rover no radio/nav or cd foreigncars Range Rover P38, Mk III and Range Rover Sport 2 09-04-2011 08:54 AM
2006 LR 3 Nav 06LR3- Discovery 3 / LR3 1 11-19-2010 08:15 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome