IPD sale XeMODeX - Experts in Volvo Electronics
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

WTF is up with my Radio

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

sixspence
Posts: 10
Joined: Wed Jul 17, 2019 9:52 pm
Year and Model: 2007 XC70
Location: Minnesota
Has thanked: 5 times
Been thanked: 0
United States of America
sixspence

WTF is up with my Radio

Post by sixspence » Wed Jul 17, 2019 10:03 pm

Pardon the French, but I've been having issues with the HU-650 in my '07 XC-70.
For a while it would be playing fine and then would randomly start cycling through the functions ... CD, FM, AM, AUX... etc. and then just stop on one. Kinda like roulette or something.
Now it just stopped making sounds altogether. It appears to be working in every way, but no noise comes out of the speakers. The reverse alert beeping sound stopped too.
I already purchased a used replacement radio, but don't want to dig in to that project and then find out that it wasn't the radio after all.
Any suggestions on what the problem could be or what to do would be appreciated.



User avatar
MoVolvos
Posts: 1791
Joined: Sun Jan 15, 2012 6:47 pm
Year and Model: 03S80T6~08C30T5
Location: NC
Has thanked: 14 times
Been thanked: 31 times
United States of America
MoVolvos

Re: WTF is up with my Radio

Post by MoVolvos » Wed Jul 17, 2019 10:14 pm

-
No system before or after that should make head-unit go psycho.


Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

DrDan
Posts: 72
Joined: Wed Jul 19, 2017 12:29 pm
Year and Model: 02 V70
Location: Frankfurt
Has thanked: 0
Been thanked: 7 times
Germany
DrDan

Re: WTF is up with my Radio

Post by DrDan » Thu Jul 18, 2019 12:34 am

The fault of two seemingly unrelated functions kind of points to failure of the PCB (bad soldering joints?). Hard to trace and fix unless you're an expert, so swapping the head unit seems a reasonable strategy. Beware that you need a unit from the same model year if you want more than basic functionality. Steering wheel controls, "reverse beep", dimming of the backlight and more are implemented using the CAN bus and apparently they changed the protocol between model years. There's more info on head unit compatibility somewhere in the depths of this forum.
These users thanked the author DrDan for the post:
sixspence



DrDan
Posts: 72
Joined: Wed Jul 19, 2017 12:29 pm
Year and Model: 02 V70
Location: Frankfurt
Has thanked: 0
Been thanked: 7 times
Germany
DrDan

Re: WTF is up with my Radio

Post by DrDan » Thu Jul 18, 2019 1:27 am

Also an important bit: disconnect the battery before removing the radio. If you don't, an SRS code will be triggered. Set ignition to II before reconnecting.
These users thanked the author DrDan for the post:
sixspence



sixspence
Posts: 10
Joined: Wed Jul 17, 2019 9:52 pm
Year and Model: 2007 XC70
Location: Minnesota
Has thanked: 5 times
Been thanked: 0
United States of America
sixspence

Re: WTF is up with my Radio

Post by sixspence » Tue Jul 30, 2019 3:21 pm

Followup...
I replaced my HU-650 with another that I purchased off ebay.
The radio now works. HOWEVER... my Reverse Sensors are not. That may be an entirely separate issue, but it is VERY suspicious that the sensors stopped working at the same time my radio stopped working. It is throwing a message that the Reverse Sensors need attention.
Also... There is NO AUX on the new radio!
I used the AUX function all the time and now it doesn't exist. It may be possible that the HU-650 I installed is an older model than the original. Is there a way to enable/disable the AUX function?



User avatar
MoVolvos
Posts: 1791
Joined: Sun Jan 15, 2012 6:47 pm
Year and Model: 03S80T6~08C30T5
Location: NC
Has thanked: 14 times
Been thanked: 31 times
United States of America
MoVolvos

Re: WTF is up with my Radio

Post by MoVolvos » Tue Jul 30, 2019 7:51 pm

sixspence wrote:
Tue Jul 30, 2019 3:21 pm
Followup...
Also... There is NO AUX on the new radio!
I used the AUX function all the time and now it doesn't exist. It may be possible that the HU-650 I installed is an older model than the original. Is there a way to enable/disable the AUX function?
Where was the AUX originally? A quick look shows no AUX front or back on the HU-650.
https://duckduckgo.com/?q=hu-650+audio+ ... efault.jpg



Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

User avatar
MoVolvos
Posts: 1791
Joined: Sun Jan 15, 2012 6:47 pm
Year and Model: 03S80T6~08C30T5
Location: NC
Has thanked: 14 times
Been thanked: 31 times
United States of America
MoVolvos

Re: WTF is up with my Radio

Post by MoVolvos » Tue Jul 30, 2019 7:54 pm

-
"The AUX input is located inside of the center console..."
http://www.volvoxc.com/forums/showthrea ... -in-HU-650


Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

sixspence
Posts: 10
Joined: Wed Jul 17, 2019 9:52 pm
Year and Model: 2007 XC70
Location: Minnesota
Has thanked: 5 times
Been thanked: 0
United States of America
sixspence

Re: WTF is up with my Radio

Post by sixspence » Tue Jul 30, 2019 8:10 pm

Maybe I wasn't clear...
On my old HU-650, there was an AUX source input, along with FM1, FM2, FM3, CD, Serius XM, etc...
On my new (used) HU-650, AUX does not show up with all the other Sources.
I reinstalled all the harnesses and cables into the identical slots that they came from. I'm not sure which one was the AUX cable, but it shouldn't matter.
I'm wondering if there is a way to enable the AUX source on the newly installed head unit.



User avatar
MoVolvos
Posts: 1791
Joined: Sun Jan 15, 2012 6:47 pm
Year and Model: 03S80T6~08C30T5
Location: NC
Has thanked: 14 times
Been thanked: 31 times
United States of America
MoVolvos

Re: WTF is up with my Radio

Post by MoVolvos » Tue Jul 30, 2019 9:23 pm

-
My understanding of an AUX input meant
1) It's a built in feature so it appears in the display along with FM1, FM2 etc.
2) In order to connect to an AUX source there is either a hole for the AUX source to plug into in the face plate of the HU or another wire/plug you can connect to with your AUX source coming from the dash.

As for getting the feature in a HU-650 there is a hack but I think many of us myself included probably can't hack it.
https://gizmosnack.blogspot.com/2015/11 ... radio.html


Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

User avatar
MoVolvos
Posts: 1791
Joined: Sun Jan 15, 2012 6:47 pm
Year and Model: 03S80T6~08C30T5
Location: NC
Has thanked: 14 times
Been thanked: 31 times
United States of America
MoVolvos

Re: WTF is up with my Radio

Post by MoVolvos » Tue Jul 30, 2019 9:27 pm



Blessings,

BKM

1998 S70 T5 - Donated
2003 S80 T6
2003 GS300
2003 Odyssey
2008 C30 T5
2019 Atlas SE 4 Motion

Post Reply