A spacer and tether device for adapting a multiconductor plug includes a spacer configured to position a plug having multiple conductors at a predetermined distance from a jack having fewer conductors so that one or more conductors of the plug are not inserted into the jack, allowing the remaining conductors of the plug to properly align with the conductors in the jack. A tether attaches at one end to the spacer and at an opposite end to the housing of the plug so that the spacer is secured to the plug for use when required.