A great way you can ensure a solid connection between your cylindrical cable housing is by using this EN3P3FX connector from Switchcraft. It has a receptacle type gender. This female connector's 3 contacts that are made out of copper alloy and plated with gold over nickel. It has a straight body orientation. This device has a maximum current rating of 3 A. This product comes packaged in bulk, so the parts will be stored loosely. It uses the solder cup termination method. This product is 24.2 mm long.