Quote Originally Posted by PitViper
Anyone have any further input on this? I just swapped out my stock radio w/an Alpine head unit and the AM reception is almost non existent. I used a Crutchfield harness, but am now thinking that the extra wire that was jumped into the factory harness at the connector might have been power for the antenna which the aftermarket harness doesn’t account for. Toughts??
AM 'should' use a ferrite dipole loop antenna inside the radio itself. I dont think the roof antenna affects AM at all... But I could be wrong.