I have a 2005 chevy cavalier, I bought a double din cd player, do I need to buy an installation kit? Or will the radio just fit?
You're going to want to buy an installation kit. Several installation kits made for that vehicle, including Metra's 99-2003 and American International's GMK-420, include double-DIN options. The kit includes the brackets that are required to mount the new radio; you can't remove the brackets from the factory radio, so you need the ones in the kit. The kit also provides a bezel ring so there's no gap around the radio in the dash.
You'll probably have to do some cutting in the dash cavity to make the new radio fit; an after-market double-DIN usually requires a bit more mounting depth than the GM radio. There are also some wiring challenges dealing with the stock GM data-bus system, which controls the factory radio.
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