Can you remove the brake light bulbs and test to see if you can isolate to the regular brake lights or the high-mount brake light? And then maybe contact GoWesty if it's their product responsible for the interference. I have LED brake lights and high-mount brake light from GoWesty and have no problems with radio interference. -Mark On Fri, Mar 16, 2018 at 9:25 AM, Stuart MacMillan <stuartmacm@gmail.com> wrote: > Figure this one out: > > > > When I depress the brake pedal I hear a faint high pitched "whine" from the > radio. It's pitch (frequency) changes with pedal pressure (higher with more > pressure), and only happens on AM stations. Unfortunately, my favorite > sports radio stations are AM so I hear it often. > > > > It didn't change with a new radio last year, and I do have LED brake lights > and the GW high mounted LED brake light. Brake light switches have not been > replaced. Whine was there with the 1.9 engine and is unchanged with my '93 > Subaru 2.2 engine conversion. I have not switched the bulbs back yet, but > I'll give that a try and see if it goes away. > > > > It's just a nuisance, but I'm stumped, particularly by the change in > frequency with pedal pressure. Any ideas why LED brake lights might cause > this? Maybe install a capacitor on the radio like this? > https://www.amazon.com/PAC-CSS12-Passive-Filter-Capacitor/dp/B000CEDZBA > > > > Stuart > > '85 Westy > |
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