XF Premium Sound

[Mr Polson 10,214]

Got a XF Ghia premo sound system for my XF wagon.

Only thing is its got a couple of cut wires.

So I've figured out that two plugs from the amp are for front and rear speakers. The black one goes to the head unit.

 

 

 

So now for the cut wires. One lot comes out of the head unit/radio. Being red, yellow and black, I'm guessing at them being 12V accessory, 12V constant and earth.

 

 

 

The other lot come from the amp loom and is near the speaker/head unit plugs.

Two blacks (earths??) And one blue/white.

 

 

[Thom 6,650]

Power for the electric Arial?

[SLO247 1,713]

That's my guess too. Normally this stuff is in the wiring diagrams in the manual.

[Outback Jack 6,352]

I agree with Thom, power antennae. The first ones you are right power, acc power and earth.

 

Jack.

[Mr Polson 10,214]

Electric aerial plugs into the dash loom and is controlled by switches on the dash pods.

Unless it also raises and lowers automatically when premo sound was equipped.

[Thom 6,650]

I remember as a kid in my mum's XF ghia when you turned the radio on the Arial would raise an the lower itself when the radio was turned off ( or switched to tape) and using the button on the dash the height of the Arial could be changed when the radio was on

[Mr Polson 10,214]

I'll take your word for it then Thom.

 

I had a look on the dash side of the loom. There's a plug with a blue/white wire going to it so I'll just hook them up.

 

Unfortunately not so lucky with the red/yellow/black wires, but I think that's because this dash never had premo sound.

 

It has 3 other wires to match up though, along with a brown one, which I have a feeling was used for illumination when dash lights were turned on.

[X-F250 182]

Is there some way to do this with the NA/DA Fairlane headunit?

 

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[Mr Polson 10,214]

Help still needed please.

 

 

Thread revival. Looked at installing this today. Tried the three wires on the back of the radio

 

 

Had them hooked up like this - based on info from the Ford XF manual. Which doesn't include schematic for amp/radio wiring, only up to the dash plug.

 

 

Now this was all with the amp and amp wiring disconnected. So just the head unit/tape deck.

Couldn't get it to fire up what so ever.

 

But - had a good read through the owners manual. Power aerial looks to be manually controlled - not auto up/down with radio on/off. Only controlled by the aerial up/down buttons.

 

So thinking it may need this blue/white wire and the two blacks hooked up to the constant/acc power and earths.

 

 

As well as the amp connection plugged into the back of the head unit.

 

 

 

The other thing though - I attempted hooking it up direct to a battery and still couldn't get it to power up. Unless it needs the amp feed to run maybe?

 

 

 

[tpak addict 1,909]

I will get pics when I can after work in the morning for you...

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[tpak addict 1,909]

Hope this helps

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[Mr Polson 10,214]

Legend Jim, thanks heaps

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[tpak addict 1,909]

No probs.... Looks like the earth of the radio runs thru the amp for some reason too which I found odd... If you want any specific pics or close ups let me know.

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[Lord_fahrquhar 2,580]

computer power supplies.

great source of 12 volt power packs to run a car tests bench for shit like this.

 

 

[Odie 0]

 Has anyone work out how the premium radio is wired so it can be used without the factory amplifier? My amp has a dead channel so I'm trying to replace it with a modern lighter and more powerful amp with bluetooth music connectivity.

 

I've pulled the amp apart and stripped back the round black DIN plug at the amp end.

The black din cable is shielded and has a grey cable inside it. I've spent the morning on this and am not confident I've got the wiring and voltages required right.

 

The 'easy' bit:

That grey cable is your low power audio channels and it has shielded tiny red, white, green and blue wires. I can solder those wires and shielding to RCA plugs so they plug into my amp RCA's.

 

The 'hard bit:

The head unit needs power from the amp in order for the head unit to turn on.  The amplifier also needs power from the head unit for it to turn it on.  I'm not sure if these triggers are supposed to be 12v or a reduced voltage (this question will become clearer later). 

 

By pulling the amp apart I worked out that the pink and orange wires are joined into one circuit on the circuit board when they enter the amp. The amp sends power to both these wires. If I feed 12v to one or both of these wires with the head unit earth wire attached to the battery then the head unit equaliser and tape deck (not tuner) power up.

When the head unit is powered up with 12v it then feeds 12v back down the yellow wire.  If I put 12v to the yellow wire to the disconnected amp which has power and ground to its own power cable then both relays in that amp click closed so I assume it powers up.  At this point if I test the voltage at the orange and pink wire outputs from the amp back toward the head unit they measure just 1.76v.  I don't know if this is because my amp is damaged or if it is supposed to only send low voltage up the pink and orange wires to trigger the head unit. 

 

The display for the tuner on the head unit never lights up.  The tuner will click when you connect the yellow or red power wires to power but it still won't light up.

 

So.... has anyone had success using the premium head unit with a different amp?

[Mr Polson 10,214]

 
The 'hard bit:
The head unit needs power from the amp in order for the head unit to turn on.  The amplifier also needs power from the head unit for it to turn it on.  I'm not sure if these triggers are supposed to be 12v or a reduced voltage (this question will become clearer later). 
 

I've had mine in and working for a few years now. I ended up getting my head unit and amp overhauled by a guy in Melbourne for very reasonable price.

In the end I was under the impression the amp provides power to the head unit, no power goes directly to the head unit from the dash wiring.


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