I need a wiring diagram for a 1990 Thunderbird with a JBL factory installed system.I want to replace the factory amp and sub woofer with an aftermarket.
When I was a kid ('89) a close friend of mine's dad bought an SC and I remember him saying it had a factory JL sub, he may have meant JBL, but yes, the SC's had pretty nice stock systems, especially for '89-'90.
No idea how to get it out. You might check some of the tbird sites.