Does adding new speakers and a radio receiver lower the value of a used car?

I own a 1997 Toyota Avalon XLS and the speakers make crackling sounds so I was going to replace all the speakers and the radio receiver and I was just wondering if I was to sell the car in a few years would it lower the value.|||Trade-in Value will decrease, yes. But private sale will increase.|||Not at all it would up the price I would pay more for a car if it had new speakers and radio reciever