RepairPal Certified shops can diagnose and repair your 2000 Toyota Corolla. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Corolla FACTORY RADIO does not have auxiliary port!
You must have an aftermarket unit that requires turning on / off auxiliary mode.
Seek *hands-on* assistance from qualified personnel.
Optional - for aftermarket radio: Look for a mode or source button - push it until you find the desired setting. Good luck!
NOTE: Later year model Corollas did have factory auxiliary input - but not in 2000.