Custom Cargo Pod for GMC Armadillo

[adzling]

So I'm trying to create a custom cargo pod for the GMC armadillo for one of my players.

Trouble is I can't seem to get it to work like previous custom items have.

1). Tried creating a vehicle item from scratch but it won't show up in hero lab for some reason.

2). I tried adding the tag that indicates it's an Armadillo Cargo Pod ("Cargo Pod" from "integral mods" drop down), still won't show up.

3). made sure to add it to a source (rigger 5.0) and when that failed added it to user content source, still no dice.

Any pointers on creating a custom Cargo Pod for the GMC Armadillo that can itself be customized using the vehicle customization rules?

thanks