Hello, I am having trouble with the charging system on my 05 Kia Spectra 5. The charging system is putting out around 14.4 volts and as a result the brake lights keep on burning out. I've replaced the bulbs several times but I'm thinking that the problem must be that the voltage is too high. I have not tried anything as far as changing out the battery or alternator yet. What would be the best 1st attempt to fix this problem?

Thanks