cigarette lighter

I need some help. 1. Need to know how to remove the cigarette lighter drawer assembly so I can check the lighter sockets and wiring without tearing up the light tray 2. Where can I get this models wiring diagrams for free? Thanks! George

I have an '07 buick lucerne that was having issues with the factory amp, so we ended up installing a new radio with all new speaker wire to bypass the amp, and also problems where the cigarette lighter would sometimes work and sometimes not work. Before the radio was replaced, only the cigarette...