2011 CTS4 Sedan Stereo Wiring

In need of boss amp wiring diagram. Tried connecting my amp and sub and t-taped into oem sub wires got no sound. So now Ima try from my amp. But don't now witch one to tap into....

Left Front Speaker (+/-)     tan - dk. green     +,-     radio, black 44 pin plug, pins 40 and 32      On models with amplifier, the door speaker wires are tan - gray at the amplifier in left side of trunk, gray 8 pin plug X1, pins 5 and 1 (without surround), or 1 and 2 (with surround). The dash speaker wires are tan - yellow at the amplifier, gray 8 pin plug X1, pins 7 and 3 (without surround), or black 16 pin plug X2, pins 4 and 5 (with surround). Right Front Speaker (+/-)     lt. GREEN / WHITE - lt. green     +,-     radio, black 44 pin plug, pins 39 and 31      On models with amplifier, the door speaker wires are lt. green - dk. green at the amplifier in left side of trunk, black 16 pin plug X2, pins 8 and 7 (without surround), or gray 8 pin plug X1, pins 7 and 3 (with surround). The dash speaker wires are lt. green - purple at the amplifier, gray 8 pin plug X1, pins 6 and 2 (without surround), or black 16 pin plug X2, pins 7 and 6 (with surround). Left Rear Speaker (+/-)     BROWN / white - brown     +,-     radio, black 44 pin plug, pins 42 and 34      On models with amplifier, the door speaker wires are brown - yellow at the amplifier in left side of trunk, black 16 pin plug X2, pins 15 and 16 (without surround), or 16 and 8 (with surround). The deck speaker wires are tan - white at the amplifier, black 16 pin plug X2, pins 11 and 10 (with surround). Right Rear Speaker (+/-)     dk. blue - tan     +,-     radio, black 44 pin plug, pins 41 and 33      On models with amplifier, the door speaker wires are dk. blue - lt. blue at the amplifier in left side of trunk, black 16 pin plug X2, pins 2 and 1 (without surround), or 15 and 14 (with surround). The deck speaker wires are tan - orange at the amplifier, black 16 pin plug X2, pins 3 and 2 (with surround). Center Channel (+/-)     dk. blue - orange (with surround)     +,-     radio, black 44 pin plug, pins 18 and 4      On models with amplifier, the center channel speaker wires are yellow - lt. blue at the amplifier in left side of trunk, black 16 pin plug X2, pins 4 and 3 (without surround), or 13 and 12 (with surround). Subwoofer (+/-)     white - pink (with surround)     +,-     radio, black 44 pin plug, pins 19 and 5      On models with amplifier, the subwoofer wires are dk. blue/white - lt. GREEN/ black at the amplifier in left side of trunk, gray 8 pin plug X1, pins 7 and 3 (without surround), or 5 and 6 (with surround). Aux. Audio Input Left (+/-)     lt. green - dk. blue     +,-     radio, black 44 pin plug, pins 24 and 23 Aux. Audio Input Right (+/-)     dk. GREEN / WHITE - dk. blue     +,-     radio, black 44 pin plug, pins 10 and 23 RSE Video (+/-)     N/A RSE Audio Left (+/-)     BROWN / white - tan/white     +,-     radio, black 44 pin plug, pins 22 and 8 RSE Audio Right (+/-)     dk. GREEN / WHITE - gray     +,-     radio, black 44 pin plug, pins 21 and 7 Satellite Radio 12 Volts     N/A Satellite Radio Ground     N/A Satellite Radio Ignition     N/A Satellite Radio Antenna     N/A Satellite Audio Left (+/-)     N/A Satellite Audio Right (+/-)     N/A Item     Size     Depth     Location Headunit     irregular center of dash Left Front Speaker     6.5 or 9     3     left front door Left Front Tweeter     1 or 3.25     1 or 2     left front dash Right Front Speaker     6.5 or 9     3     right front door Right Front Tweeter     1 or 3.25     1 or 2     right front dash Left Rear Speaker     5.25 or 6.5     3     left rear door or side panel Left Rear Tweeter     3.25     2     left rear deck or pillar Right Rear Speaker     5.25 or 6.5     3     right rear door or side panel Right Rear Tweeter     3.25     2     right rear deck or pillar Center Channel     3.25     2     top center of dash Subwoofer     10     2.5 or 3     center of rear deck or trunk floor Gary Sather

Hey I'm having trouble finding the wires. You wouldn't know what specific one I knees to tap into. The wires on sheet don't seem to match like the one on the end of my amp. My other solution is to tap into my two front speaker and run wires to the back to my loc. But I really like to avoid all that.