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100% Jakedashian
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7,285 Posts
Discussion Starter #1
If there’s one flaw that the Mazda Miata has it is that there is but one lonely 12v accessory socket on the whole car, and that the design of it is really stupid and at the same time clever. As well as having a traditional fuse on the fusebox the back of the socket has a fusible link that is designed to burn out if a cigarette lighter gets stuck in the “on” position in the socket and starts to overheat. The link melts, the current stops flowing, and the lighter stops heating up. Cool. But over the course of time this fusible link will get brittle and just randomly **** the bed at the Worst Possible Moment, leaving you bitter and annoyed and with no way to charge your phone.


Fear not! With a box of assorted quick disconnects, some wire, and a 12v well from your local Autozone (instant gratification!) you can be up and running in 15 minutes.


Removing the lighter socket varies from car to car, as the NB miata and Protege both use these kinds of lighter wells. You could simply solder a wire where the fusible link was in the old socket, but I managed to lose some important pieces off of mine in the process so i got a new one. On the left you can see the pink retaining ring and socket well from the Mazda. On the right is the Autozone well and its retaining sleeve.


If you use the retaining sleeve from the Autozone well you can see the front doesn’t sit at all right with the recess in the Mazda trim panel. We will have to steal some parts from the old socket to make this work.


Fortunately the barrels are similar enough thatwe can simply slide the plastic retainer over the new socket, but now the retaining sleeve which contains the ground pin won’t fit. Hmm.


Too long


Just right. Remember, it’s not the size that counts, it’s how you use it. I used tin snips, which I don’t recommend. My Dremel, annoyingly, was MIA.


Ba-da-bing ba-da-boom. Here it is all assembled. I had to take the ground sleeve back off in order to fit the assembly back into the Mazda trim panel. I recomment putting the retaining ring in first (from the front) and then sliding the barrel through it (from the front) and then screwing the ground sleeve on from the back.


Next cut a couple short lengths of wire and crimp the connectors on as shown. I had to file one of the spades down a bit because the positive connector on the Mazda wiring harness is a slightly smaller size than the negative one.


Plug that ish in like a Glade appliance and give it a test. Fortunately for me it worked first try.


Looks factory.


Toss in a slim high-speed USB charger for my high-speed USB charging needs and revel in your handiwork (and how dirty your car is )
 

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Sweet, I always wondered why the 12V outlets in both Miata's I have owned never worked. I saw the socket you bought and got excited because I though you were going to do something similar to what I did.



I mounted it right next to the console on the passenger side. It's wired straight to the battery (obviously through a fuse), so it's always on and I can charge my phone or inflate the tires with the car off. No doubt, it is the single best, most satisfying mod I have done to my car per dollar. Keeps the wires away from the shifter and lets me put my cellphone/iPod right in the seat or console, out of the way. The wires were tucked away better on my old car, but I don't much care about how this car looks.

Anyway, I'm taking my dash out shortly and will surely be doing this mod as well.
 

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100% Jakedashian
Joined
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7,285 Posts
Discussion Starter #3
On my NA I drilled a .9-inch hole (1 inch is too big) in the back wall of my center console cubby and wired in a lighted 12v socket. Could keep my phone charging safely in the cubby or (with my flat charging cable) run it out the closed lid to the cupholder.
 
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