What would cause strange noises to come through the radio of a 1994 Buick LeSabre when accelerating and turning on the AC?

For some reason the radio isn't filtered correctly. I would go to Radio Shack and get the best filter they have and try that. Also if the antenae is broken sometimes that will be the cause. Goodluck, JOe there is noise filter in the radio, also on the coil pack may need replace at coil. if this does not do it you may need to replace radio. or maybe bad ground The alternator rectifier bridge has a bad diode in it.