i turn my headlights on and off goes my radio
i just started this morning on my way to work, i heard a fuse pop and my radio shut off and my head lights died, the radio came back on after i turned off the headlights. after i replaced the fuse, if i turn on the lights the radio shuts off and turns back on. it has an after-market kenwood radio that got put in by ABC warehouse the day before i bought it a few months ago. any ideas where to start?