1999 V70 T5 SC816 Ipod wiring - need input pin assignments

Post by **abscate** » 08 Jan 2014, 12:47

Mod note - thread will be moved to Stereo Forum after resolution - thread with different Circuit board here...

https://www.matthewsvolvosite.com/forums ... 33&t=53690

Im putting in an iPod onto my SC816 tape deck and have a different circuit board then the thread in audio

Here is a picture of inputs - can anyone guide me to the L/R for this system? The L-Channel and R-CHannel markers are as useful as birdcage full of goat manure...

Post by **abscate** » 08 Jan 2014, 13:02

Found it at

http://www.atthetipwebs.com/technologyi ... ct8131.jpg

I will confirm and put picture here as most of the other links are broken

Post by **abscate** » 08 Jan 2014, 15:24

Works like a charm, thread moved to AUDIO Forum

Post by **rspi** » 08 Jan 2014, 15:57

Post by **osman** » 08 Jan 2014, 16:12

If you look at the circuit board it is notated Lch and Rch right near the edge.

Post by **rspi** » 08 Jan 2014, 16:36

The link in the 2nd post had that highlighted.

Post by **kcodyjr** » 08 Jan 2014, 18:57

Can someone give a succinct technical summary of this mod? What exactly does it accomplish, by what strategy, and to what quality result?

The videos are very helpful and I don't mean to discourage, but for some of us, opening a video is a serious commitment of scarce CPU and memory resources. A paragraph of accompanying text would be most welcome.

Post by **abscate** » 08 Jan 2014, 20:21

You cut a 3.5 mm iPod jack and solder the wires to the points indicated in the picture.

Now you plug your IPod into the radio, select tape, and play music from your iPod through your stereo.

Commercial solution about 140 USD

This solution, 7.99 plus solder.

Post by **kcodyjr** » 08 Jan 2014, 23:28

Select tape. That was the key piece of information.

This modification injects a signal by wire into the tape subsystem, hopefully after the magnetic pickup preamp. If so, it would result in good signal quality, on rough par with CD. If not, might as well just use one of those cheap tape adapters.

By the way, that would be a 1/8" TRS jack, not an "iPod jack." Let's not give the Almighty Sir Jobs credit for more than his considerable due.

Post by **abscate** » 19 Feb 2014, 04:48

Sound quality is on par with CD. I did both my V70 and the SWMBOs BMW over Xmas