Extra 12v socket question.

Audio, Electronics and Lighting questions and answers

Moderators: timk, Stu, zombie, Andrew, -alex, miata

User avatar
smy0003
Racing Driver
Posts: 1870
Joined: Mon Dec 30, 2013 12:35 pm
Vehicle: NA8
Location: Melbourne

Extra 12v socket question.

Postby smy0003 » Sat Feb 15, 2014 12:55 pm

So I'm doing some things to the inside of the 5:
viewtopic.php?f=28&t=62166

I'm trying to add a 12v source to the centre console basically.

Everywhere says to splice from the existing cig-lighter, but being relatively new to this I was wondering if anyone could shed some light on the best way to do this? Or just offer some more depth to this.

Is the cig-lighter two separate terminals or is it part of a harness?

Should I be using crimps or just soldering to the terminals?

Don't really care if I have to sacrifice the functionality of the exsisting lighter, it's in a pretty useless spot anyway.

It's a late '00 NB2 by the way.

Any help is appreciated!
[b]Then: Sunlight Silver NB8B
Now: Chaste White NA8

User avatar
kenson
Fast Driver
Posts: 268
Joined: Fri Oct 19, 2007 10:55 pm
Vehicle: NB SE
Location: Perth

Re: Extra 12v socket question.

Postby kenson » Sat Feb 15, 2014 1:13 pm

Yep, cigarette lighter is one of the best places and no, it's not part of a harness.
You can very easily take out the pocket near the lighter.

From there you should be able to push the cigaratte lighter out, disconnect it and you should be looking at 2 wires. I can't remember the colours, the 12V was yellow from memory.

I'm a fan of terminal blocks and bootlace ferrules (I'm a crap at soldering haha).
Image
I ended up using a terminal block and a few jumpers to give me an extra 3 x 12V sources.

Goodluck!

User avatar
smy0003
Racing Driver
Posts: 1870
Joined: Mon Dec 30, 2013 12:35 pm
Vehicle: NA8
Location: Melbourne

Re: Extra 12v socket question.

Postby smy0003 » Sat Feb 15, 2014 1:34 pm

Thanks for the quick reply kenson.
Promising stuff, can't wait for the auxmod to come over.

Sent from my GT-I9100 using Tapatalk
[b]Then: Sunlight Silver NB8B
Now: Chaste White NA8

User avatar
smy0003
Racing Driver
Posts: 1870
Joined: Mon Dec 30, 2013 12:35 pm
Vehicle: NA8
Location: Melbourne

Re: Extra 12v socket question.

Postby smy0003 » Sat Feb 15, 2014 1:34 pm

Any more experiences? Would love to hear anything and everything!

Sent from my GT-I9100 using Tapatalk
[b]Then: Sunlight Silver NB8B
Now: Chaste White NA8

User avatar
Locutus
Racing Driver
Posts: 879
Joined: Thu Jul 26, 2007 7:39 pm
Vehicle: NB SP
Location: Sydney
Contact:

Re: Extra 12v socket question.

Postby Locutus » Sat Feb 15, 2014 3:00 pm

kenson is right - it's just a pair of wires that run to the cig lighter. The wires run back into the main harness behind the HVAC controls.

I recently used a pair of wiretaps to permanently install the power supply for my dash cam behind the cig lighter. That way I still have access to the cig lighter for other things like USB chargers, etc.

User avatar
kalt
Fast Driver
Posts: 379
Joined: Wed Jan 01, 2014 9:44 pm
Vehicle: NB8B
Location: Vic
Contact:

Re: Extra 12v socket question.

Postby kalt » Sun Feb 16, 2014 4:46 pm

kenson wrote:Yep, cigarette lighter is one of the best places and no, it's not part of a harness.
You can very easily take out the pocket near the lighter.

From there you should be able to push the cigaratte lighter out, disconnect it and you should be looking at 2 wires. I can't remember the colours, the 12V was yellow from memory.

I'm a fan of terminal blocks and bootlace ferrules (I'm a crap at soldering haha).
Image
I ended up using a terminal block and a few jumpers to give me an extra 3 x 12V sources.

Goodluck!


Needing it! The 12V port seems fairly tight, fingering my way through the hole of the pocket thing next to it, can't seem to find the notch spot.. Also is the orange around the 12V port suppose to light up with the dash, or just look pretty? If I could get the port out with dissembling armrest console and centre dash I'd have a better look!
Owning a fast car is easier than driving a car, fast.

For sale
NB8 Factory Airbox

Mr Morlock
Speed Racer
Posts: 6444
Joined: Mon Feb 04, 2008 11:40 am
Vehicle: NB8B
Location: Melbourne

Re: Extra 12v socket question.

Postby Mr Morlock » Mon Feb 17, 2014 9:43 pm

I would have thought the outlet will readily take other devices like GPS and you you should be able to plug in an adaptor which gives you further outlets i.e. like a double / triple adaptor.- very cheap and functional. You can also buy standalone power outlets which have a bracket and socket to attach to a suitable spot. If you do run a separate power wire you should probably also have an inline fuse- you might like to bounce that off someone else as well.

User avatar
smy0003
Racing Driver
Posts: 1870
Joined: Mon Dec 30, 2013 12:35 pm
Vehicle: NA8
Location: Melbourne

Re: Extra 12v socket question.

Postby smy0003 » Mon Feb 17, 2014 11:37 pm

Yeah I know molock, but I want an outlet in the console.
If there's one thing I can't stand it's wires hanging about in my car.
So your suggestion would be perfect if I wasn't being so anal.

Sent from my GT-I9100 using Tapatalk
[b]Then: Sunlight Silver NB8B
Now: Chaste White NA8

User avatar
Okibi
Speed Racer
Posts: 10898
Joined: Thu Aug 21, 2003 11:00 am
Vehicle: NB SE
Location: Perth, Western Australia
Contact:

Re: Extra 12v socket question.

Postby Okibi » Tue Feb 18, 2014 1:43 am

I was at supercheap autos on the weekend, they sell a plastic 16amp and metal 20amp ciggy socket, both looked as short as the Mazda one and come with a dust cap.
If you had access to a car like this, would you take it back right away? Neither would I.

User avatar
hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Extra 12v socket question.

Postby hks_kansei » Tue Feb 18, 2014 12:32 pm

Mr Morlock wrote: If you do run a separate power wire you should probably also have an inline fuse- you might like to bounce that off someone else as well.


Agreed, always put in a fuse.


If I recall, the standard socket has a fusible link (correct term?) at some point in it's wiring, if the socket is overloaded (say... using a 4 port adapter with 4 high load things like fridges) the wire fizzles and cuts the power.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

User avatar
smy0003
Racing Driver
Posts: 1870
Joined: Mon Dec 30, 2013 12:35 pm
Vehicle: NA8
Location: Melbourne

Re: Extra 12v socket question.

Postby smy0003 » Tue Feb 18, 2014 7:47 pm

Thanks guys, got a nice looking Italian socket on it's way from bairnsdale.

Still waiting to hear from the bloke at auxmod, he put me on the list and the site says they expect stock mid feb.

In the mean-time keep all the experiences coming! It's all good.

Sent from my GT-I9100 using Tapatalk
[b]Then: Sunlight Silver NB8B
Now: Chaste White NA8

User avatar
Locutus
Racing Driver
Posts: 879
Joined: Thu Jul 26, 2007 7:39 pm
Vehicle: NB SP
Location: Sydney
Contact:

Re: Extra 12v socket question.

Postby Locutus » Tue Feb 18, 2014 11:27 pm

Much better to integrate and hide permanent circuits (when appropriate) rather than run adapters otherwise your interior will end up looking like a Christmas tree.

The cig lighter already has its own dedicated fuse near the driver's knee.

hks_kansei wrote:If I recall, the standard socket has a fusible link (correct term?) at some point in it's wiring, if the socket is overloaded (say... using a 4 port adapter with 4 high load things like fridges) the wire fizzles and cuts the power.

That's what a fuse is/does. The purpose is to protect the wiring in case of overload or a fault.

User avatar
hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Extra 12v socket question.

Postby hks_kansei » Tue Feb 18, 2014 11:55 pm

Locutus wrote:
hks_kansei wrote:If I recall, the standard socket has a fusible link (correct term?) at some point in it's wiring, if the socket is overloaded (say... using a 4 port adapter with 4 high load things like fridges) the wire fizzles and cuts the power.

That's what a fuse is/does. The purpose is to protect the wiring in case of overload or a fault.


Yes, but I seem to recall the lighter socket having a secondary protection in the form of a sacrificial bit of wire.

ie: non-replacable instead of a fuse where you simply bin the blown one and put in a fresh one.

http://forum.miata.net/vb/showthread.php?t=442770
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

User avatar
Locutus
Racing Driver
Posts: 879
Joined: Thu Jul 26, 2007 7:39 pm
Vehicle: NB SP
Location: Sydney
Contact:

Re: Extra 12v socket question.

Postby Locutus » Wed Feb 19, 2014 9:36 am

Ah, right. I didn't even realise that was there.

Looks like that's designed to kill the circuit if the socket overheats so it doesn't start a fire. I always wondered what would happen if the lighter failed to pop itself out of the socket...

User avatar
kalt
Fast Driver
Posts: 379
Joined: Wed Jan 01, 2014 9:44 pm
Vehicle: NB8B
Location: Vic
Contact:

Re: Extra 12v socket question.

Postby kalt » Wed Feb 19, 2014 10:11 am

hks_kansei wrote:Yes, but I seem to recall the lighter socket having a secondary protection in the form of a sacrificial bit of wire.

ie: non-replacable instead of a fuse where you simply bin the blown one and put in a fresh one.

http://forum.miata.net/vb/showthread.php?t=442770



Guess who had to remove centre console to get the 12V port out :roll:

Fusible link pointy arrowed
You do not have the required permissions to view the files attached to this post.
Owning a fast car is easier than driving a car, fast.

For sale
NB8 Factory Airbox


Return to “MX5 Audio, Electronics & Lighting”

Who is online

Users browsing this forum: No registered users and 35 guests