Iso lead issue

[Mrpam]

I brought an alpine head unit second hand and ordered the iso lead and it arrived today but here's the problem when I pulled the cd30 out it has a bigger block going into the standard than the one supplied for the iso lead so obviously it won't fit.
I ordered the lead from amazon and it clearly stated it was for vectra 02 onwards but my car is a 2008 model is there a different type I need ?

Many thanks paul

[wright8672]

the one you need is 2004 onwards mate iirc

[Mrpam]

All sorted I needed a quad lock iso now it's working fine