I am looking to install a new HU in my 06 LS, i read all the stickies on this and it really didn't help me any. I noticed that you can buy a metra harness but you loose all your warning lamps. I also saw you can get a harness on crutchfield for like 150 bucks. Could you guys tell me if i'm wrong or did i miss something.

 

"3.) Also, will I lose the factory door chime with the installation of an aftermarket head unit on an 05-06?

No, the factory door chime is still retained since it is not connected to the radio in any way."

FAQ thread