my radio has alot of static, but only when the engine is running and only on two stations. i realize this is probably a grounding issue, but where should i start to find out?

 

you off to a good start...check the gound on the radio. You may want to ground it on a different place and see if that helps. Though since it's only coming from two stations, that is kinda weird. Perhaps check the ant connection while you are at it