I replaced the OEM radio in my 2001 Touring today with a Sony. The OEM radio had a single wire, violet with yellow tracer, going to the back of the radio from within the bowels of the dashboard. The new radio has no facility for anything like that. The factory service manual says that this wire is a "data wire." Is that what sends codes to the PCM?
Most important question: If that wire isn't hooked to anything, will it throw an error code?
Thanks!
Edit: I need to get my glasses changed. I thought the thumbs down icon was a question mark.