in my 97 sunfire convert. i have these problems
when i drive my car at night the bass from my back speakers causes my lights to dim, also when i hit a little bump in the road my headlights go dim then get brighter, another problems is when my radio is on either in day or niight it cuts out then i hear static from the speakers, (its the stock cd play) i have changed the alternator and battery and ran bigger ground and power wires to my battery.
HELP<<<<
thanks

Bad ground, or shorted radio.

ive changed all the grounds that i can think of, and the radio does the same thing with my flipscreen in it