Radio/tape Cd Player problems of the 2010 Honda Pilot

2010 Honda Pilot, I have had it since brand new. This is the 4th or 5th winter I have no brakes when the temps are below freezing. The pedal is basically frozen in place. I have to continually press on it until it loosens as I press down on the pedal. I have had it to allstar Honda, told them park it outside like I have to, hop in & drive on a day in the teen temps. They told me they can't recreate the problem which means they didnt drive it or they are lying as they don't know how to fix it. They would not change my spark plugs with recall because no error code showed although I had sluggish acceleration especially on the freeway. I had a mechanic change my plugs (at my expense) & no longer had trouble with acceleration. But Honda wouldnt do it because no error code, the recall was basically an extended warranty. They claim they cant find trouble in my electrical for the radio as my radio freezes up intermittently for anywhere from hours to weeks. I am unable to change radio stations, turn on or off, or make any changes other than volume. As of Saturday, I began experiencing no brakes while driving. I warmed my car, pressed the brake pedal repeatedly until my brakes worked,drove roughly two miles stopping at traffic lights twice & then when I tried to step on the brake, the pedal wouldnt budge, I had no brakes. My prior complaint to Honda was referring me to the same dealer then not returning of my calls. My brakes are worsening. I cant afford a new car or I would have gotten rid of this 3-4 winters ago to avoid this major safety issue. This is a risk to me, my children and my father who I drive all over. There are several sites on the web where people chat about the same problem in the mw and even in canada. They have bled the system and have no cure. I want working brakes 100% of the time.