(if you have a pre-2000 car.. this info doesn't apply to you)
If you have a 2000+ Cavalier or Sunfire, then your factory head unit/radio/cd player/stereo/whatever is a CLASS 2 unit. Class 2 radios are wired differently than anything most stereo installers have dealt with.. and there's a LOT of misinformation out there about them.
If you replace the factory radio from the car with an aftermarket unit.. and you do not use a relocation harness or door chime module.. you will lose your factory door chimes and OnStar (if you even have it). That's it!
Removing the factory deck from the vehicle will NOT affect:
- Airbags
- Keyless Entry
- Daytime Running Lights (DRLs)
- Cruise Control
- Oil change light (J-cars don't even have one!)
If anyone tells you otherwise.. THEY ARE MISINFORMED!
If you want to keep your factory door chimes and/or OnStar... you need to either relocate the factory deck using a T-harness or replace the factory deck with an aftermarket chime module for the chimes and OnStar speaker.
If you don't care about the loss of the factory chimes.. you can buy a cheap aftermarket harness and hook up an aftermarket deck. You don't have to spend $100 or more on a T-harness to relocate the factory deck.
(Of course.. you'll also need a deck mounting kit.. and a GM antenna adapter..)
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