All Things Mk5 > Sat Nav and Car Audio

RNS510 Aux out

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golfather:
Thinking of attaching a sub to the RNS510.
Although everyone seems to have used speaker level converters, I read here that there are pinouts for AUX-out on the telephone connector:

http://www.my-gti.com/529/volkswagen-rns-510-pin-assignments



Multi-pin connector 3, 12-pin, for telephone and microphone signals

1 –  Microphone input, negative
2 –  AUX output, audio, right
3 –  AUX output, common signal earth
4 –  Microphone output, negative
5 –  Telephone audio input signal left, negative
6 –  Telephone audio input signal right, negative
7 –  Microphone input, positive
8 –  AUX output, audio, left
9 –  Microphone output, positive
10 –  Telephone mute (mute switch for radio)
11 –  Telephone audio input signal left, positive
12 –  Telephone audio input signal right, positive

Has anyone tried these and do they work?
Although the pins are populated on the unit, the pin-out diagram on the unit has these as blank.

golfather:
Seems like Aux out was only available for US units, which is why the pinout label on EU units shows these pins as blank.
Still intreaged to find out if its true as the pins are there so just need to hook them up to an amp to see if they are live !

mclovin:
I believe they are active on all RNS-510s, however, the big problem I have with this approach is that it only gives you two channels so there is no way to add a sub (or to amplify your rear speakers if you wanted to for some unknown reason).

golfather:
Dont understand !

If you've got your preout for left and right, then that is more than adequate for your sub amp, and keep the head unit driving the fronts and rears full range speakers.
If you feel the need to add more amp'd speakers, most amps have throughput RCA's preouts which you can feed into the next amp, for 6x9's or amped rear speakers or whatever.

mclovin:
Okay, just re-read your original post and I see you *just* want to add a sub, so I guess you want to go down this route to get a "true" preamp output for the sub amp. This is fine and it'll do just that, but why stop at just a sub amp? You mention splitting out the signal by using amps in serial to drive additional speakers but given the nature of the RNS-510, my guess this is likely to be a 2V preamp output rather than a true 4V output, but even if it is 4V you really don't want to split this down into multiple amps as this will degrade the sound quality quite substantially. If it is a 2V output as I suspect you REALLY don't want to split this out to multiple amps, it'll sound bloody awful.

As for using the head unit to drive the front speakers... seriously? These are the speakers you hear, these are the ones you really want to amplify! The little class D amp in the headunit is massively compromised, using a separate amp will hugely improve sound quality, which is kind of the whole point, doing this alone will give you a better overall sound in that car than just adding an sub. Rear speakers are pointless unless you spend a lot of time sitting in the back of your car so you could drive those from the head unit or just not bother at all (I don't bother powering my rear speakers).

The only way to get a half decent sound out of the RNS-510 is to use a LineOutput Converter as it gives you four pretty reasonable 4V pre-amp channels to play with. This way you can use a 4-channel amp to drive your front and rear speakers or ditch the rears and just drive the front speakers and a sub (bridge outputs 3&4 for more clout to the sub). Further gains can be had from upgrading the front speakers, invest in a set of 3-way Focals and you won't regret it. This way you get great range, a decent soundstage and some real clout when you get twitchy with the volume button, I know as this is the setup I have in my car right now.

6x9s speakers are compromised by design, mounting them at the back of the car would make them even worse and driving them from second amp hooked up in serial to a sub amp will make the whole thing sound like a total dogs dinner - Don't waste your money!

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