Fuse for usb outlet

[stephenkershaw]

Hi all. Would anyone know the fuse number for the usb socket in the central armrest of a 997.2? The cigarette lighter has power but the usb does not charge my phone anymore with engine on or off. I have looked at the fuse diagram but it is not specific enough. Many thanks, steve

 

[malarcy]

Don't think there is a physical fuse - its driven from the PCM as far as I know - so perhaps check the D9 and D10 fuses. The USB socket is only USB 2 rated - so 0.5A max - it will struggle to keep up with a large screen phone running navigation apps or streaming.

 

[stephenkershaw]

Don't think there is a physical fuse - its driven from the PCM as far as I know - so perhaps check the D9 and D10 fuses. The USB socket is only USB 2 rated - so 0.5A max - it will struggle to keep up with a large screen phone running navigation apps or streaming.

Thanks for the info. I replaced the original head unit with an Ali express one and didn’t realise it would stop the usb plugs in the central armrest working. The usb plugs in the new head unit work as a phone charger though it’s all good. Thanks again.

 

[grumpybadger]

Thanks for the info. I replaced the original head unit with an Ali express one and didn’t realise it would stop the usb plugs in the central armrest working. The usb plugs in the new head unit work as a phone charger though it’s all good. Thanks again.

Are you happy with the Ali Express unit? I am looking at one for my 987.1 TIA

 

[stephenkershaw]

Yes I am. Works well with carplay. Fairly easy to fit although I did have to run an extra wire from the fuse box to the unit. No problems with it so far and it has. Been in six months or so.

 

[grumpybadger]

Yes I am. Works well with carplay. Fairly easy to fit although I did have to run an extra wire from the fuse box to the unit. No problems with it so far and it has. Been in six months or so.

What was the additional wire for? I already have a aftermarket product that was fitted when I got the car but the volume is a nightmare and I'm guessing its because of the amp. It goes from soft to loud in 1 or 2 click

 

[grumpybadger]

Yes I am. Works well with carplay. Fairly easy to fit although I did have to run an extra wire from the fuse box to the unit. No problems with it so far and it has. Been in six months or so.

Also, I've not bought from AliExpress before and it adjusts the price at checkout "The price of your order has been adjusted to reflect a later collection of VAT at the customs" how does that work?

 

[stephenkershaw]

What was the additional wire for? I already have a aftermarket product that was fitted when I got the car but the volume is a nightmare and I'm guessing its because of the amp. It goes from soft to loud in 1 or 2 click

The extra wire was to pick up a switched power supply to the unit. It came wired with a permanent power supply which drained the battery. Not a huge amount of work. Just need to find a fuse that is off when the key is not in the ignition and use one of those devices that splits the fuse in to two circuits. Then route the cable under the drivers side foot well. The advice on the forums is to turn the volume on the existing head unit up to fairly loud before disconnecting it and fitting the new unit.

 

[malarcy]

Also, I've not bought from AliExpress before and it adjusts the price at checkout "The price of your order has been adjusted to reflect a later collection of VAT at the customs" how does that work?

I recently bought one. Expecting to get an email from the uk carrier for the vat payment (have had this before when shipping stuff from the US) but that never happened. I got a Royal Mail tracking number that kicked to life about 10 days after they marked the item as shipped and sure enough 3 days later it arrived. No vat was asked for.

 

[stephenkershaw]

Same for me.

 

[grumpybadger]

Thanks everyone

 

[grumpybadger]

The extra wire was to pick up a switched power supply to the unit. It came wired with a permanent power supply which drained the battery. Not a huge amount of work. Just need to find a fuse that is off when the key is not in the ignition and use one of those devices that splits the fuse in to two circuits. Then route the cable under the drivers side foot well. The advice on the forums is to turn the volume on the existing head unit up to fairly loud before disconnecting it and fitting the new unit.

Just ordered one, did you need a code when fitting it or does it just fire up and work?

 

[malarcy]

Just ordered one, did you need a code when fitting it or does it just fire up and work?

No code required as such - and physically plug and play - but there was a ton of things I wanted to, and others I needed to change in the "engineering" settings - the code for which on mine is 3368

I found I needed to change specifics around, left hand or right hand drive ( affects where the icons for carplay appears rhd - right side of screen), , turn off the really annoying beep at every keypress or touch, turn off reverse detection ( I havent fitted a camera - but it would still try and go into "camera" mode when reversing.... and a few others that I found ( like "door detection - supposed to show a graphic if your doors are open - which worked, a bit, sometimes - so I turned it off)

I also needed to change the "antenna always on" - setting - otherwise the unit would stay awake when the ignition key was removed, mine works find for turning off when key taken out with that setting in place.

I find it great at carplay, and a bit average / cheap chinese in other software functions - but does the job, looks good, sounds good and is better than looking at my phone screen in a holder for google maps.

One thing I did buy was an "sma to fakra" adapter from amazon for about £10 - that meant i could hook up the existing factory GPS and didnt need to install the provided one.

 

[grumpybadger]

No code required as such - and physically plug and play - but there was a ton of things I wanted to, and others I needed to change in the "engineering" settings - the code for which on mine is 3368

I found I needed to change specifics around, left hand or right hand drive ( affects where the icons for carplay appears rhd - right side of screen), , turn off the really annoying beep at every keypress or touch, turn off reverse detection ( I havent fitted a camera - but it would still try and go into "camera" mode when reversing.... and a few others that I found ( like "door detection - supposed to show a graphic if your doors are open - which worked, a bit, sometimes - so I turned it off)

I also needed to change the "antenna always on" - setting - otherwise the unit would stay awake when the ignition key was removed, mine works find for turning off when key taken out with that setting in place.

I find it great at carplay, and a bit average / cheap chinese in other software functions - but does the job, looks good, sounds good and is better than looking at my phone screen in a holder for google maps.

One thing I did buy was an "sma to fakra" adapter from amazon for about £10 - that meant i could hook up the existing factory GPS and didnt need to install the provided one.

Thanks, lots of detail there, do you have the link to sma to fakra unit you bought as seems to be a few, TIA

 

[malarcy]

Thanks, lots of detail there, do you have the link to sma to fakra unit you bought as seems to be a few, TIA

https://amzn.eu/d/72UFc4F is what I used.

 

[grumpybadger]

https://amzn.eu/d/72UFc4F is what I used.

Thanks