This document is a supplement to SAE/USCAR 17 and is intended to give recommended usages for one and two way RF connectors and dimensional requirements for 2-way RF connectors and hybrid (RF & DC power) connectors which are not currently specified elsewhere. The radio frequency (RF) connector interface specified herein is suited for unsealed automobile applications up to 3 GHz and is intended for in-line, board mount, device mount, straight or angled applications. Dimensional requirements are specified in this document to ensure interchangeability. Performance requirements are specified in SAE/USCAR-2, and in SAE/USCAR-17.