2001 kia power serge

[de2deas]

my 01 kia sometimes has a bad power surge when I hit the brakes at night, it cuts off the radio for about 2 sec. and the dash and head lights dims, What could be the problem?

[LMP]

I would check the brake lights ground return; run a new ground wire from rear lights to engine block/battery negative. I'd do the same for headlight ground. ..then report.

[de2deas]

The brake light ground return, where is that located? under the dash, or by the brake lights?

[de2deas]

fixed it. It was a bad alternater and faulty battery connection.