Headunit Woes

SteveKeith · May 22nd, 2020, 22:04

I'm having some head-unit problems and can't figure it out anymore.

I have a 2007 V70, it has the Hu-850 with Dolby amp, and it has the phone and satnav etc. It had a fault which appears to be common so I've replaced with a Pioneer single din unit

https://www.halfords.com/technology/...bt-267990.html

These are the cables I have for fitting

https://www.dynamicsounds.co.uk/ct20...s-adaptor.html

https://connects2.com/Product/ProductItem/CT20VL05

I have only fitted the left one as I can't find a plug for the other one. So that powers up the headunit etc, great!

I have also fitted the adapter for the amp. It goes to the grey amp cable, leaving the black amp cable empty (could this be the issue)

The stereo turns on, radio works, but sound only comes from the front, seems like only door speakers. When I use the fader to the back I lose all sound. Any thoughts? Have I fitted the wrong cables or do I need something else?

MMT5 · May 23rd, 2020, 11:01

I have always used Autoleads for any kind of audio modification. They accomodate almost all combinations of fitment.

I have already entered your vehicle details in this link for you.

https://catalog.autoleads.co.uk/?fc=...mp-sbv-submit=

barrybritcher · May 24th, 2020, 15:52

those rca connectors are tight, make sure it's fully seated. common issue

barrybritcher · May 24th, 2020, 15:53

and did you deffo wire up the blue amp wire?

May 22nd, 2020, 22:04	#1
SteveKeith New Member Last Online: Dec 8th, 2020 09:34 Join Date: May 2020 Location: Port Talbot	Headunit Woes I'm having some head-unit problems and can't figure it out anymore. I have a 2007 V70, it has the Hu-850 with Dolby amp, and it has the phone and satnav etc. It had a fault which appears to be common so I've replaced with a Pioneer single din unit https://www.halfords.com/technology/...bt-267990.html These are the cables I have for fitting https://www.dynamicsounds.co.uk/ct20...s-adaptor.html https://connects2.com/Product/ProductItem/CT20VL05 I have only fitted the left one as I can't find a plug for the other one. So that powers up the headunit etc, great! I have also fitted the adapter for the amp. It goes to the grey amp cable, leaving the black amp cable empty (could this be the issue) The stereo turns on, radio works, but sound only comes from the front, seems like only door speakers. When I use the fader to the back I lose all sound. Any thoughts? Have I fitted the wrong cables or do I need something else?

May 24th, 2020, 15:52	#3
barrybritcher Flaccid Member Last Online: Apr 15th, 2024 16:09 Join Date: Nov 2016 Location: Norwich	those rca connectors are tight, make sure it's fully seated. common issue __________________ 2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current)

May 24th, 2020, 15:53	#4
barrybritcher Flaccid Member Last Online: Apr 15th, 2024 16:09 Join Date: Nov 2016 Location: Norwich	and did you deffo wire up the blue amp wire? __________________ 2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current)

May 23rd, 2020, 11:01	#2
MMT5 Member Last Online: Mar 31st, 2024 11:35 Join Date: Sep 2009 Location: UK	I have always used Autoleads for any kind of audio modification. They accomodate almost all combinations of fitment. I have already entered your vehicle details in this link for you. https://catalog.autoleads.co.uk/?fc=...mp-sbv-submit=

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