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  • · Registered
    2005 chevy trailblazer_ls
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    47 Posts
    Read your article about puttine LEDs in the HVAC. Looking to do the same thing with my radio and have a few questions.
    - What is the purpose of the resistors?
    - What size resistors did you use?
    - How did you determine the polarity of the HVAC board? bulbs work either way, but diodes have a plus and a minus lead and won't work when backwards.
    - Original bulbs have blue boots to dim the brightness. Did you find white LEDs to be too bright (or maybe thats what you were going for)? I also bought blue LEDs thinking maybe that might be less "harsh".
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