Punto (Mk2/2b) Why Doesn't my new aftermarket stereo doesn't work

[deagz]

Thanks, will try this at the weekend!

Couldn't get my aftermarket HU working last time so I gave up

 

[mo1965]

Hi,
Do I need to put 2 fuses in piggyback holder? original cigar lighter 20amp and 2 amp? if so where does the 2 amp go? lower or higher slot?

 

[ewg]

Hi 20 amp goes in lower one then 2amp in top,if its the same as the one I have just done works a treat, best to put lower one in first and then check if cigar lighter works. Hope this helps.

 

[Tov]

Superb write-up; thanks very much for putting this together.

Going to fit my new Sony Head Unit on Friday and was scratching my head about switched-lives and CAN BUS until I read this.

Not sure if it helps, but I found a pin-out diagram on my factory-fitted CD unit which is really clear in showing where the connectors go - thought I'd attach in case it's of use to someone.

 

[Bobtoo]

Thanks for posting this guide. The Punto I've just bought has permanent 12V only on its aftermarket stereo, so I'll be sorting that out soon.

One question- is there a way to connect to the illumination or am I as well to give that the ignition switched 12V feed too?

 

[nitramtpr]

Great guide Ziggy, I used this to get my Pioneer stereo working. It was a bit easier on that one, the Pioneer comes with swappable red and yellow wires. I left the yellow connected to yellow, and just connected the red out of the Pioneer into the cigar lighter connection exactly as you did. Worked a treat.

 

[Charley1985]

help I have a pioneer stereo, need to connect it properly to stop battery drainage, what do I need to buy to sort it. I have the iso adapter as came with stereo

 

[nitramtpr]

All you need to do is piggyback off the power lead that goes to the cigarette lighter. It is fairly straightforward, you'll just need a short length of wire to go up to the radio and then connect into the cigarette power wire. If you don't have any crimping tools you can cut the power wire and then use a chocolate strip to connect it back up.

https://www.ebay.co.uk/itm/Chocolat...A-Electrical-Terminal-Connection/292032902019

You'll need one of those little connectors for both the cigarette socket and and then one for the Pioneer end.

 

[Charley1985]

thanks I've done it but 3 days later my battery is flat ?
It's not on road yet as not taken my test but i run it weekly to keep it ticking over, I hope its just the weather & non running of car everyday that's caused the battery issue & not the sterio.