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Looking for an amp and wiring harness

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Fiodor
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Fiodor

Looking for an amp and wiring harness

Post by Fiodor » Fri Apr 10, 2020 4:38 am

Hello!

I found a nice SC-901 HU to upgrade my audio system but it's impossible to find the amp and the wiring harness to power it !

Do you know if I can DIY one or does one of you have one in stock ?

Thanks a lot for your help !
1997 V70 T5 2.0 AWD with welded angle gear at 240k km
1990 740 Break (dead)

kklepack
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Re: Looking for an amp and wiring harness

Post by kklepack » Fri Apr 10, 2020 6:13 am


Richard99
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Re: Looking for an amp and wiring harness

Post by Richard99 » Fri Apr 10, 2020 10:33 am

Hi Fiodor,

I just wired up a C70 amp to the SC-901. You can buy the C70 amps on ebay if you don't have access to junkyards. I just did custom wiring for this project. There is a thread (see below) on how to do it. It isn't the most clear write-up IMO so let me know if you need any help and I'll do a more thorough write-up job and post it.

viewtopic.php?t=40830
Last edited by Richard99 on Fri Apr 10, 2020 4:43 pm, edited 1 time in total.
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Fiodor
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1998 Volvo V70
2000 Volvo V70XC

scot850
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Re: Looking for an amp and wiring harness

Post by scot850 » Fri Apr 10, 2020 4:05 pm

I have both, but unfortunately, they are at the back of a 10 ft x 10ft secure storage room. I won't be able to get in for the maybe 4-5 months until I can get my new garage built. Otherwise I would suggest go down the C70 amp route. Not as nice and tidy. Not sure if they come with the wiring harness though.

If you are not in a rush, I can get back to you when I can get into the storage unit and can access the stuff.

Final part would be the cost of shipping. That would make it an expensive amp unless you have to have the OE set-up.

It may be worth trying looking up parts yards in Sweden. I recall seeing several which had Volvo parts listed.

Neil
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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Re: Looking for an amp and wiring harness

Post by RickHaleParker » Sat Apr 11, 2020 12:01 am

The Volvo Dolby Prologic audio unit for the SC-901 $42.50.
SC-901 Volvo Dolby Prologic processor, Volvo part number 3533799.

As for a aftermarket amp. You would need to find one with a DIN connector input or use a DIN to RCA adapter.

Aftermarket Stereo Factory Radio Amp Amplifier interface Wire Harness Cable Plug
Last edited by RickHaleParker on Wed Apr 15, 2020 12:37 am, edited 1 time in total.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

scot850
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Re: Looking for an amp and wiring harness

Post by scot850 » Sat Apr 11, 2020 12:05 pm

Is the Prologic unit the same as an amplifier? The older P80's had an amp (850's) that mounted up behind the radio. The P80's that had an amp under the passenger seat and the Prologic unit if they had the center speaker on the dash behind the radio head. I may be wrong on this....!

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

800artfreed
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800artfreed

Re: Looking for an amp and wiring harness

Post by 800artfreed » Sat Apr 11, 2020 12:20 pm

If the S/V70 car came with a center dash pad speaker the ProLogic unit mounted behind the heater core in the console area. The amp was under the passenger seat. If you have pick and pull salvage yards look for a C70 model. The 100 wattamp is inside the trunk on the left side behind a panel. You can pull cables and DIN harness from that vehicle. I always take the mounting brackets. I found another amp (don't remember the car model) mounted under the passenger seat.
I have followed other threads and recently created the speaker wire harness from the amp to the OEM center console speaker connector using an aftermarket adapter and single contact connectors. This will allow me to correct any mistakes between left and right, front and rear speaker hookups. Waiting for good weather to remove the passenger seat and mount the amp, run wires, connect fused 12v supply directly from the battery to the amp,etc.
Good Luck.

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RickHaleParker
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Re: Looking for an amp and wiring harness

Post by RickHaleParker » Sat Apr 11, 2020 12:56 pm

scot850 wrote:
Sat Apr 11, 2020 12:05 pm
Is the Prologic unit the same as an amplifier?
The Dolby Pro Logic unit is not a amplifier. It is a Dolby Surround Sound signal processor.

Image
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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RickHaleParker
Posts: 4217
Joined: Mon May 25, 2015 2:30 pm
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RickHaleParker

Re: Looking for an amp and wiring harness

Post by RickHaleParker » Sat Apr 11, 2020 1:13 pm

Oh man .... I got find me one of these. :wink:
I don't really need one but I am curious if universal remote would work.

Remote control RC-825 for the SC-901.


Image
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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Fiodor
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Fiodor

Re: Looking for an amp and wiring harness

Post by Fiodor » Sun Apr 12, 2020 11:26 am

So I got myself a C70 amp along with the complete wiring harness, do I need to modify it in order to add it to my v70 ?
1997 V70 T5 2.0 AWD with welded angle gear at 240k km
1990 740 Break (dead)

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