stereo wiring

[ermie571]

Thanks to the wiki for the ISO standard, but...


Had the radio and CB removed from the van the other night. Just cut all the wires and removed the connectors

So now I have a dash full of wires, and interestingly, no digital clock on the dash?

Ok, here goes. I am sitting in the drivers seat looking at the hole...

on the LEFT HAND SIDE there is a group of wires within a black sheath
1. Red with green stripe
2. Brown with red stripe
3. Brown with green stripe
4. Blue with green stripe
Would these be speakers? Also, am I correct in thinking that the colours of the wires at speaker end are the same as the wires in the dash?

then on the RIGHT HAND SIDE there is a small bunch of wires held with a cable tie. The bunch consists of the following:
1. Red wire - thick
2. Red wire - thin.
3. Grey with blue stripe - but there are two of these - one comes in from the left and one from the right. Would this be the lead for the clock that has been cut in error?

The remaining four wires are as follows
FROM THE RIGHT
1. Red - thick (yes, another one)
2. Brown with white stripe

FROM THE LEFT
1. Blue
2. Brown with blue stripe

I was reckoning on 8 speaker wires (2 speakers front and back) a permanent live, and a switched live. 10 leads. I have technically 12. But if the blue/grey wire should be joined and is nowt to do with the stereo, this takes it down to 10.

But it also means that one red wire is in fact a speaker wire!?

Also - assuming the thick red is the switched wire, and the thin is the permanent live. Am I correct?

How easy is it to transfer the set-up to a split charge system, and run the radio from that, including the permanent live? (understood that it may drain the leisure, but would protect the main battery, yes?)

any advice greatly appreciated.

Em
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[lloyd]

Found this on internet somewhere. Is for American Vanagon. Tried putting it in column to make it easier to read, but no luck. Hope it helps.

1986-92 Volkswagen Vanagon Stereo Wiring

Constant 12V+ Red/White
Switched 12V+ n/a
Ground Brown
Illumination Gray/Blue
Dimmer n/a
Antenna Right Front

Front Speakers 4" Doors
Left Front (+) White/Black
Left Front (-) Brown/White
Right Front (+) Green/Black
Right Front (-) Brown

Rear Speakers 5 1/4" Side Panels
Left Rear (+) White/Black
Left Rear (-) Brown/Black
Right Rear (+) Green/Black
Right Rear (-) Brown

E D I T: Doesn't look like it is of any help.

[lloyd]

Here's a link to Brick-yard thread on putting radio and lighter socket on leisure battery:
http://www.brick-yard.co.uk/forum/forum ... isure&PN=1

[ermie571]

Lloyd - thanks very much!! That has identified some of the issues!

The grey/blue wire is an illumination wire.....wonder what that means?

.....but the red wires are different - sure I didn't see one with a red/white colour.


Thanks again for looking, though!

Em
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[Mocki]

emma,

the illmination wire is from the dimmer part of the headlight switch to the heater controls and the radio, and possiblt cigar lighter socket if fitted as standard........

brown is always neg in vw loom

there is no ignition switched wire in a t25, there is no position in the ignition switch for it,sort out which are speakers, then seal the others and start afresh, so you know what is what

either run direct from leisure (via a fuse) or from the fuse box (if can interior lights are running from leisure the radio will to , same fuse



.

[ermie571]

Mocki - thanks for that.

So the illumination wire is for illuminating the switches only....as it is a replacement stereo, can I just join it back up with connecting block, as I cannot see anywhere on the stereo's wiring diagram for a connection?

Will do as you say and identify speakers first.

I want to put this on a split charge system. We have a spare battery for it, and the necessary fuse box. Have read and inwardly digested the wiki on the subject, but am a bit confused about this sentence

pick up the relay feed from the ignition instead of the warning light, as some alternators can burn out diodes if done the way in the diagram.......and make sure you use a 40amp relay

So - not the blue wire then? Which wire in the ignition? Or is it ok to use the blue wire? From the wiki it says not to use an ignition switched live? How is this different?

Want to do what is best for the van, and have an understanding of how it works! Have a good friend who I will ask to check it over before going live and connecting to battery etc etc, but would get much satisfaction from doing it myself!

Em
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[Mocki]

use the blue wire emma, i find its easier to connect to it in the engine bay , on the alternator, rather than in the loom near the fusebox or at the dash, its hardly any harder to run the wire to the battery box under the van, and you dont need to cut the wiring , you can just add one on the connection on the alternator...... personally i would add a switch to this wire to be able to switch the split charge off when need be, like in the winter when the main battery needs all the charge and the leisure battery isnt being used as much

keep the feed wire from the main battery to the leisure are short as practicable, and use chassis earth rather than wire for the neg.Keep the fuses as close to the source power, so they protect the wiring as well as the accessory.

[ermie571]

Steve - I understood that, thanks!!!

Just one question....I understand chassis earth to mean an earth strap from the negative terminal of the battery to the vehicle body - ie the same as on the main battery. Is this right? Will there be the necessary point in the battery box under the passenger seat?

(sorry that's two questions...)

Em
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[Mocki]

i doubt there will be a bolt there, but im sure you can make one be there........ just mind where you are drilling through, place it simular to the drivers side....... and clean the paint away so it contacts well.....

if you use the chassis earth,
a. you dont need to run two 30 amp wires from one battery to the other, and
b. it means the leisure battery gets its Neg connection direct

[ermie571]

Thanks for the help!

Em
x

[tomhaigh]

On mine the two red wires (the thick and thin ones) are connected together within the ISO connector; I assume the thick one comes from the fuse box to supply the radio and the thin one continues across the dash to feed other stuff like the clock and the interior light.

[ermie571]

Tom....Thanks! That is really helpful, and clears up another anomoly!

What would I do without this place!

Take care all

Em
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[lloyd]

Don't think I would hook small and large reds together... I believe one is radio power and other is radio / heater / cigar lighter lighting on a dimmer. I think hooking both together means no dimmer / full voltage to lighting.... and don't know what kind of problems that might cause.

[tomhaigh]

Hmm. They are definately connected together properly on mine (i.e. from the factory not some bodge). If I am correct it also would explain why the clock no longer works, as it would be disconnected.

I guess though it could be different on a different model of transporter, so I may be wrong. I would take a picture but I butchered the whole thing last week to put different wiring in.

[ermie571]

Lloyd - Mocki said further up that the blue/grey wire is the illumination....

is this the same thing that you are thinking of?

Em
x

Model = 1990 caravalle GL

oh - had a look in the wires that go to the doors....bliddy tons of them as the thing has central locking that don't work....so its screw drivers out and speakers out to determine colours of speaker wires. Sommat to do at lunchtime I guess

Em
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