have recently just bought an 06 vectra sri nav
the spec is a little poor where i would have expected standard items such as rear interior light.
Im looking to retrofit some optional upgrades
the main question being
If i am to fit parking sensors will it be able to be turned off with switch on dashboard and work with dash lights?
Also wondering about HIDs is it possibile to fit them with the auto setting as if standard and will it work again with dash lights etc
Also where is best place to buy new parts?
was checking ebay but some prices seem ridiculous for interior map light and rear interior light
any help would be great