UK-POLOS.NET - THE VW Polo Forum

I've just had my battery replaced, while doing so I notice a small black wire, connected to the -ve has snapped. The guy changing the battery said it was probably an old sub or amp someone's removed, looking at pictures of the 2006 polo online, it seems they all have it, but I can't find connection details any where of what it might be... Any ideas?

Yes that’s quite normal. I had one on my 2006 polo. I though it seemed odd, but it’s original

You’ll want to reconnect that wire