Hello Benz world!I've just finished setting up my pnp satellite radio to my 04' CLK.I did hard wired my radio to the cigarette lighter(positive to the blk/ yellow wire/ground to the brown wire but one I've finish the setup and turn on the power to the sat radio,no power at all!! I had to cut the end of the sat radio(blk to blk,ground/ blk/white positive) but it didn't work at all! still no power to the radio!! is there another power source for me to connect too? under dash?????? any wire to connect too,besides the cigarette lighter? need your help asap!