I've got a 2002 WRX sedan that I took the OEM head unit out of a few months back. However, I blew the amp on my subwoofer and the head unit doesn't work well with just the OEM speakers. The OEM head unit sounds better.
The problem is, when I replaced the wiring harness, I neglected to save the old one for the original head unit. Is this something I can go to Wal Mart and get or will I have to order through a Subaru dealership, or what?