Treylor Park
New member
- Joined
- Jan 11, 2009
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Does anyone know if I can simply plug my new subwoofer into my Punto??? Its an 03 plate 5000000 ltd edition. Just need to know if the correct wires are already in the loom somewhere???
Yes.... I got a short length of wire ( about a foot) with the white multiplug attatched to the sub. Also got the bracket and nuts/bolts too so mounting it should be easy. Just not sure of the wiring!!!??

Right, on PC now...
You need a 6 lenghts of heavyish guage wire, I had some speaker cable that came with surround sound system so I used that.
Colour code the ends of each wire to make it easier to identify them, then run them under the rear door cards, underneath the base of the seat, around the base's hinge, then along the lower part of the rear trim, underneath the door sill trim, then up around the weather seal, behind the glovebox and in through the small gap to the back of Headunit.
orange & green - splice into rear speaker
orange & black - splice into rear speaker
blue & red - pin 2 in audio iso harness
Blue & yellow - pin 1 in audio iso harness
Black - earth - locate nearest earth, probably rear light cluster
Grey - auto antenna, pin 5 in power iso harness
Red & white - Power - splice into igintion switched wire in power iso, or into main power cable,
Here is the wiring diagram that I used to figure out the wires,
[url]https://www.fiatforum.com/gallery/data/2771/medium/WDPuntoMk2-10.jpg[/url]
What happens if you dont have rear speakers?Right just checked mine,
SUB -> POWER ISO
Red&White -> Red
Black -> Black
Grey -> Blue
With the remain wires, you dont need to run them to headunit, you can splice into each rear speaker
Orange & Green - Right
Orange & Black - Left
Yeah it just means running another few wires.
Did puntos not come with rear speakers as standard?
Yeah you have def blown a fuse, i managed to do it somehow when i was tidying some wires behind my HU but it was 2 days before it went in for a service so i let them change it. It will probably be in the inside fuse box so just have a check of themNo, because mine didn't. So I had to put the pins into my ISO plug as well.
Major problem though for me!
I give up on trying to wire the sub, so i decided to wire the rear speakers in and call it a day at that, but now, with them in place, and wired. Neither headunit nor the interior light has power and won't turn on![]()
I've ran back along everything and nothing seems to be broken, no wires pinched and all of the connections i've made or solid. Everything else in the car seems to have power (lights, speedo display) everything but the headunit and interior light.
Anyone got any ideas what this could be before i top myself?
EDIT FORE MORE INFO:
Now that I think about it, when I was wiring in the rear speakers, everything was plugged in. Could I have blown a fuse somewhere? But the thing is, where? There's one in the back of the head unit, and obviously all the ones in the fusebox. I haven't got any spares to test with, but I plugged in my old, fiat head unit and with that in, both it and the interior light are still dead.