An electrical assembly connector for connecting a flexible assembly having a plurality of flexible assembly electrical contacts to a rigid assembly having a connector receptacle with a plurality of attachment element electrical contacts. The connector comprises an intermediary device configured to electrically connect the rigid assembly and the flexible assembly. The intermediary device has a plurality of connector electrical contacts. The intermediary device electrical contacts are exposed on a first base side and on a second base side of the intermediary device. The intermediary device electrical contacts exposed on the second base side are configured to mechanically and electrically couple to the flexible assembly electrical contacts, and the intermediary device electrical contacts exposed on the first base side are configured to electrically and mechanically couple to the attachment element electrical contacts.