Who has some ideas before I REALLY dig in on my kid's car.
1995 Celica in good condition with low-average miles. Recently the ABS check light started coming on, seemingly at random, with a variety of codes such as: Right Front wheel speed. Right Front sensor damaged. Right Rear wheel speed. Stop Light Circuit. Pulled the right front wheel and checked cabling. Visually OK. The other day the ABS light went OUT for a while and the brakes went into ABS mode during normal, conservative driving.This seems to happen only when the radio is on. It has a sub-wolfer that was professionally installed a year ago.