which one of the ground leads would affect such options : head and tail lites , all interior courtesy lighting , radio , digital dash, glovebox lite , and others on that circuit . I checked no power is at the afuse block at the fuse CIG/CLK also RADIO fuse has no power at the top of the block, TLP/LPS fuse the same thing . I want to check the ground Where is it??? thanks in advance for any info. TA