The Dometic ignition electrode part #292362620 is sold as the electrode (spark igniter) alone and does not include the ignition wire or connector. For the Dometic RM4223 refrigerator model, the compatible ignition cable is typically Dometic part number [phone removed]. This wire and connector are sold separately and may not be currently listed as an orderable part on our site. Since your used fridge's wire is detached and the connector end is not clearly identifiable, we recommend verifying the exact cable needed by consulting the appliance’s official parts list or contacting Dometic directly. If you want, we can assist in sourcing the correct ignitor cable or recommend suitable replacements once the exact part is confirmed.