Toyota Repair Problems? Ask a Mechanic for Answers ASAP
You can try to use tweezers or needle nose pliers. But more than likely you will have to remove the unit and open it up. If you want, you can send it out to a repair facility of the make the unit is. If it is a factory unit, your Toyota Dealer will have a reman exchange program that you can swap it out with if need be.
I hope these few ideas/solutions help. Thanks, Genchi