I've pretty much redone everything in my car, I started it up for the first time in about a year last night and found out I have an odd issue...

When the ignition is in the Accessory position (key twisted counter clockwise), the radio works fine, I get FM reception as normal.

When the ignition is in the Run position (no matter if the engine is actually running or not), there is power to the radio, but I get no FM reception, just static. The deck is a 5-10 year old pioneer, but I am struggling to believe the problem is with the radio itself.

Anyone have ideas, or ran into this before?

Thanks.