Installing new HU, iso adaptor for amplified system or not?

[jonnybaz]

Bought a new stereo for my multispace-04 and trying to find a suitable iso adaptor for it. Found two different for my berlingo, those for amplified, and those for non amplified systems.
How can I find out which one to buy?

Cheers/

[jonnybaz]

No clues how to verify this?
I guess a 3£ loss getting both version is my strategy.

[Tomcat3]

Why not go down to your local ice specialist and ask them they should be able to supply the one you want.