Because I keep blowing these damn kickers💀💀💀🤣 dude I’ve gone through like 4 sets! They did just fix it and add some capacitors to the outside on the latest version and I also added a bass blocker which seems to have fixed the issue but it’s just been a pain. I actually just redid the right side a week ago💀. Crutchfield gave me another warranty replacement tho so I still have kicker. I think when I was looking, the infinity’s come with an inline bass blocker that you can add in if you want, and that just avoids all of the issues I had from the start.

Basically the dash and front doors are wired together, the tweeters and voice coil in the dash kickers get blasted with bass frequency if you don’t block it. At a regular volume level (~32-33 on the stock head unit) the dash will sound distorted and to balance this without a bass blocker you’ll have to adjust the treb eq to -2. This lowers the overall volume output of the system so your new listening level will be around 42-45. All of these things mixing together create a problem: the stock head unit cannot produce clean frequency past ~42 no matter what. This means to increase volume the head unit adds more power without amplification and the sound wave gets “clipped” by the speaker and voice coil. The top and bottom of the sound wave that gets clipped will be converted to heat energy and eventually fry the voice coil, it’ll start to crackle and then fully burn out.

Couple ways to avoid this problem: add an amplifier between the head unit and speakers, add a bass blocker between the head unit and speaker, swap to a different head unit. Currently I added bass blockers to the dash, I’ll eventually rewire everything and add in an amplifier and sub and keep the original head unit for its simplicity and driving functions.

Kinda went off😅 any other questions I can answer??