My 2005 Crossfire roadster basic has what sounds like a relay static noise. coming from just behind top of firewall under center of dash. The noise used to go away after starting car, but now continues even after starting. Car seems to start and run Ok, I originally thought it sounded like it was coming from the RCM module and replaced it,and found what looked like burn marks on the large fuse and replaced it. That appeared to fix it but a few days later it came right back now sounding from the under the dash location. Any ideas? Thanks!