Vault secret injection with Helm charts

I’m getting my feet wet with Vault and trying it on Kubernetes. I’ve ran through the demo of injecting Vault secrets into Kubernetes containers using a sidecar and it seems to work well. However, I’m curious how Vault would work with applications installed using Helm charts. Helm charts often create their own secrets or ask you to provide a secret object. I see it as a challenge to inject Vault secrets without the Helm chart stomping all over it. Can anyone talk about your experiences with this situation? Thank you!