help

[stormy007]

Can anyone show me how all the stereo wires connect into the radio,all the wires have been taken from the green connector and we don't know what colour goes were it's a volvo estate v40 2002

[gatos]

If no one else can get it to you, I will be able to so so tonight. Have a busy day planned ahead

[DXMachina]

Lets start here with the HU605 pin-out diagram - little use on its own but its a start...

[DXMachina]

Just took these pics and trimmed them down - shows green plug with wiring colours, from both sides. Car is Phase 2 2001 V40 so should be electrically identical to yours. Pics are hosted at Dropbox, if you cant see them let me know and I will attach them here instead.

[mjb73]

I found this helpful when I changed my radio for the wiring.
http://www.volvoforums.org.uk/showthread.php?t=195201

[DXMachina]

Just spent a few minutes with the wiring diagram to work out what the various connectors on the green plug actually do.

RichT4's guide linked to above by MJB73 shows the bare minimum needed to get an aftermarket head unit working (+VE, -VE, Ignition Switched +VE). For completeness here's the rest

Unused - MOBILE PHONE MUTE (Connect to -VE to silence radio)
Red/Black - dimming control
Green - SPEED SIGNAL FROM ECU (Used in diagnostic mode to check the speedo accuracy, and in advanced-user mode for speed-adjusted volume control)
Yellow/White - dimming control
Brown/White - IGNITION SWITCHED POSITIVE
Thick Orange - BATTERY POSITIVE

non clip side
End - Black. NEGATIVE
Unused
unused
Red - ANTENNA POWER
Black - NEGATIVE/ GROUND
Unused

[druid]

Originally Posted by DXMachina

Green - SPEED SIGNAL FROM ECU (Used in diagnostic mode to check the speedo accuracy)

I thought that would have been to turn the volume up, speed sensitive ie radio gets louder as you go faster. My Mams megan scenic has it!

[DXMachina]

If you press the right series of buttons on a HU605 it turns into a secondary speedometer. I cant remember what the sequence is, but its in the manual.

[kieran40]

Originally Posted by DXMachina

If you press the right series of buttons on a HU605 it turns into a secondary speedometer. I cant remember what the sequence is, but its in the manual.

Really dx how cool is that these volvo's of ares always spring up suprises

[DXMachina]

Druid was also right, but I didnt know it

It is difficult to link directly to posts on the ThirtyFortyFifty forum due to a problem with the configuration of their web server. This info was posted there in 2010
The display of speed is available as one of the options from the AUM submenu using the Source selector button apparently. You can have fun trying to find it if you like - but the exact info was posted on this forum sometime in the last 2 years

Following post doesnt include how to do it, but does give clues.

Originally Posted by 304050 forum user M4gician on 11 February 2010 - 07:04 AM

AUM (Advanced User Mode)
# With the radio switched off, press and hold the volume wheel down for at least 5 seconds to start the AUM function.
# Turn the 1-20/DISC knob to choose an AUM function (see function list on the right).
# When the function has been chosen, the function's default position flashes. Press the 1-20/DISC knob to choose an alternative (e.g. ON/OFF, LOW/MID/HIGH, etc., depending on the function).
# Continue to choose function/alternative.

To reset all AUM functions to factory settings, turn the 1-20/DISC knob until "SET TO DEFAULT" is shown in the display, and then press the same knob. All AUM settings are reset to default position and the radio reverts to normal status (music, news, etc.).

To save any changes and revert to normal position, turn the 1-20/DISC knob until "BACK and SAVE" are shown in the display, and press the same knob.

To revert to normal position without saving the changes, turn the 1-20/DISC knob until "BACK without SAVE" is shown in the display, and press the same knob.

AUM functions (starting position "default" is underscored)
- SET TO DEFAULT (See left-hand column).
- ASC (Active Sound Control) ON/OFF - The ASC function automatically matches the sound volume to the speed of the car. - ASC TABLE - Choose level of the ASC function (LOW/MID/HIGH)..
- SRC ON/OFF- Use this function to activate/deactivate the function which reduces the noise in poor reception conditions. The function is normally used when the radio is in AM mode.
- SRC TABLE - Choose level of SRC function (LOW/MID/HIGH).
- FIXED EQ A/B - Use this function to switch between the two programmed equalizer curves. A is optimized or S40. B is optimized for V40.
- DOLBY NR ON/OFF - Activates/ deactivates Dolby noise reduction when you listen to a cassette tape (HU 405/605).
- BACK and SAVE (See left-hand column).
- BACK without SAVE (See left-hand column).

Also: HU615 display speed option - care of Polish V40 owners forum (link is in English)