Hey guys. Totally new here!! And new to driving again. Haven't had a license in 17 years. Finally back on the road. I picked up a cheap 06 F-150 for a work truck. There was a factory sub box sitting under the back seat but I don't think it came stock in my truck. With that being said, I've looked for the harness that would plug into the Amp and can't find it. So I guess my question is.... If that harness isn't there, where can I find one and how hard would it be to get it wired up? The truck does have an aftermarket radio. Thanks in advance for any advice!

 

Have you removed sub (is it still bolted down?) and are sure that it isn’t connected ?

 

not bolted down