I recently had a starter relay installed and it immediately resolved the much discussed intermittent starting issue on my 1982 Spider. This morning I have a new starting issue: the starter continues to operate after the engine has started and after I turn off the ignition/engine. (I temporarily resolved the stater issue by unhooking the battery cable). What is the most likely cause of this problem? Ignition switch, faulty starter relay or something else? My electrical skills are limited, so I appreciate your ideas. Thanks.