Folks Here’s an adapter I don’t think they are rare
https://smile.amazon.com/Super-repairman-Trailer-Adapters-Connector/dp/B08L3BTP9N/ref=sr_1_2_sspa?crid=1N9GKDD3K81ZY&keywords=4+wire+to+7+wire+trailer+adapter&qid=1660445222&sprefix=4+wire+to+%2Caps%2C154&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFFQTNEUldYTlJTVFMmZW5jcnlwdGVkSWQ9QTAyNzcyMDkxWDdCRkYyVVBHSDdKJmVuY3J5cHRlZEFkSWQ9QTAxODQ3MjcxWVFWRDQ1QklYSkFMJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ== _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com