2006 Malibu Maxx radio installation

[aruddawakening]

i have a 2006 malibu maxx that im installing a double din radio in. ive noticed there are 2 connectors in the factory radio. what is the smaller one for. ive been trying to install it for like 2 weeks now. please help!! thank you

 

[zora]

have you looked at a site such as www.crutchfield.com for wiring information