These Plastic Speaker Spacers make it a breeze to replace your factory speakers.

Made from Hard plastic, with predrilled holes for you new speakers

The speaker Spacers come as a pair 

To Suit 100 - 120mm Speakers - Rear Door, Rear Parcel Shelf

This product is known to work in the following vehicles:

Fiat 500 2008-
Holden Astra 2004-2009 AH
Holden Zafira 1999-2004 TT
Renault Trafic 2011-2014 X83
Alfa Romeo MiTo 2008-2013