what wires do I connect my stereo's red,orange,and blue wires to? Thought I knew. Worked in previous installation. Had a two page diagram of electrical system. Went to house to answer phone and came back to the car and the wind spirited off one of the pages. Found the one page about 75ft. away. Bummer. Bummed. Haven't been able to locate chassis shop manual after hrs. and hrs. searching the web. Any Vuick brothers know where I should inquire? Tony in Valencia,CA.