Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?

On 16/11/16 18:28, dave wrote:
Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?


Using a DMM or a test lamp?

Check radio fuses are not blown?

The radio may be feeding itself only from a weak connection to dashboard
illumination, which may be dropping voltage when you turn outside lights on.

--
Adrian C

On 16/11/16 19:38, Adrian Caspersz wrote:
On 16/11/16 18:28, dave wrote:
Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?


Using a DMM or a test lamp?

Check radio fuses are not blown?

The radio may be feeding itself only from a weak connection to dashboard
illumination, which may be dropping voltage when you turn outside lights
on.


Oh scrap my witterings, that doesn't make sense.

Weird.

--
Adrian C

On Wed, 16 Nov 2016 18:28:13 +0000, dave wrote:

Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?

But you don't say if the radio works with the lights on or even off.
Does the radio have an earth connection?
Where exactly was the -ve lead of your meter connected when measuring?


--

Graham.

%Profound_observation%

I had my SONY DAB 2008 RX put into my 159 - it took a pro FOUR HOURS.

In article , dave
writes
Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*,
Normal so far
if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?
Does it have memory presets and do you lose them whenever this happens?
--
bert

Simon Mason wrote

I had my SONY DAB 2008 RX put into my 159 - it took a pro FOUR HOURS.

Because it always was a steaming turd with wheels.

On Wed, 16 Nov 2016 19:42:34 +0000, Graham.
wrote:

On Wed, 16 Nov 2016 18:28:13 +0000, dave wrote:

Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?



But you don't say if the radio works with the lights on or even off.
:-) It doesn't work at all - becuase it's in the bin :-)
I was just wondering what the various power cables were to it were for
(I should have made that clearer).

Where exactly was the -ve lead of your meter connected when measuring?
Just picked up on an eath under the dash. The earth is ok - check from
there back to battery - yep get 12+ volts.

Perhaps it was cunning wired by nissan to ban listening to the radio
at night har ha.

On Wednesday, 16 November 2016 20:55:45 UTC, Rod Speed wrote:
Simon Mason wrote

I had my SONY DAB 2008 RX put into my 159 - it took a pro FOUR HOURS.

Because it always was a steaming turd with wheels.

I fitted the same radio to my 156 on my own, but on the 159 he had to take out the air vents, fit a new DAB antenna to the windscreen and hook it up to the steering wheel controls.

That is why I paid him £200 cash.

Simon Mason wrote
Rod Speed wrote
Simon Mason wrote

I had my SONY DAB 2008 RX put into my 159 - it took a pro FOUR HOURS.

Because it always was a steaming turd with wheels.

I fitted the same radio to my 156 on my own, but on the 159 he had to take
out the air
vents, fit a new DAB antenna to the windscreen and hook it up to the
steering wheel controls.

That's what I meant about it being a steaming turd with wheels. ****ed by
design.

That is why I paid him £200 cash.

Just a rat hole you keep pouring your money down.

In article ,
dave wrote:
Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?

It's not uncommon to have a connection to the car lighting, so the display
dims when they are on.

--
*How come you never hear about gruntled employees? *

Dave Plowman London SW
To e-mail, change noise into sound.

And does it? Since you have the car, one assumes that this does not happen,
or you would be posting what idiot wired this up. Therefore, I have to ask,
where are you measuring from as an earth?
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"dave" wrote in message
...
Strange radio wiring. This is just for interest, am not trying to fix
anything (for a change)!

An ancient Nissan Micra K11 radio - wiring to the radio has these
wires for power.

2 wires. (The rest all seem to be for the speakers)
a) is +12Vdc all the time
b) is +12 Vdc when the ign key is set to Aux.

Start Engine

Same readings as above *except*, if turn any of the lights on (parking
lights, main beams), power to both cables goes off! That would turn
the radio off at night : No?