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  1. Metra Speaker Harness Polarity

    Speaker crossover electrolytic caps are what are called nonpolarized or bipolar- the audio signal is alternating current and so they don't have a steady +/- . Using a standard (non-nonpolar) cap in a crossover application is a recipe for problems, and capacitor failure (and sometimes speaker...
  2. Metra Speaker Harness Polarity

    Hoping that I can tag onto this. I am planning to replace all of the speakers in all the locations in my JT Gladiator, which are identical to a 4 dr JL Wrangler. Are people saying that _both_ the 72-7902 and the 72-6514 flip the polarity? If so the speakers should all stay in phase, and it's...
  3. Plug and Play amp upgrade to basic system

    Thank Varilux - I haven't dug into my dash yet so was not sure on how much space there might be behind or above the glove compartment, but if I can fit the Key amp up in there that would be ideal. I am replacing my smaller speakers with 2" Fountek full-ranges (with adapter plates, and with...
  4. Plug and Play amp upgrade to basic system

    Many thanks Varilux for posting this. I want to do something very similar with a Kicker Key 180.4 amp which is also a 45w x4 amp and about the same size as the Alpine that you used. Wanted to ask - where did you mount your Apine KTP-445U and how did you physically attach it? Thanks!
  5. Clutch- durability w/ unintended abuse?

    I've got a JT Gladiator that I bought in August and that I am really happy with. 3.6 6 speed MT. Asking this question here in JL-land since the drivetrains are the same and you JL owners have a lot more overall experience with this generation of vehicle I've been very pleased with the 6MT. The...
  6. Upgrading knee speakers. Dash removal?

    I also want to replace the lower 4" speakers on my 2020 JT Gladiator but am hoping not to have to pull off all of the upper dash components in order to get the lower areas uncovered for the lower speakers. How much/ which parts of the upper dash stuff has to come off in order to remove the...



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