timmaaah 0 Posted March 22, 2013 Hey all - I'm chasing an aerial problem. I have wired in a switched 12v supply to supply my phone and dash cam. If I plug them in, I get a lot of static/interference on FM. I've had a look at the aerial cable, and even replaced the lead from the amplifier bit back to the aerial on the roof, but I'm still getting problems. I also get interference without the extra bits plugged in, and moving the aerial about will cause the reception to get better and worse. Are there any multimeter readings I can check? There's a good earth checked from the outer braid and a metal part of the car, and no continuity between the inner and outer cables, or inner cable and metal car part. Any ideas? It's doing my head in! It's the original base with an aftermarket shorter sticky up bit. Quote Share this post Link to post Share on other sites