It depends on what you're putting in it's place. If you are putting another OEM H3 radio, then no, it wont affect anything. If you installing an aftermarket radio, then you need to check with the installer to make sure that they install it properly so you don't lose those functions. i think there is an adapter or something that can be intsalled to integrate it into the radio.
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2008 Hummer H3 Alpha Adventure. Graphite Gray Metallic.
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