Insight object refer to other object

[Bastien Delourmel]

Good afternoon, 

We have 4 Insight Object: 

1. Impacted Customer

2. Products (all list)

3. Service

4. Equipement 

What we want: 

When selecting Impacted Customer, the product list related to customer is pre-filtered

When selecting Product, then the Service and Equipment related to Product AND to Customer are pre-filtered

I already the JQL of: 

Impacted Customer: objectType = (Customer)

Products: (all list):  object HAVING inboundReferences("Customer" IN (${customfield_XXXX${0}}))

How to do it with Service and Equipment? How can Service and Equipment can be linked to the customer AND products? What could be the IQL? 

Thanks a lot!