hook up the power and parking light wires to the under dash fuse block. there are 1/4" male spades (4-5 i think) that provide fused power (constant, ignition, parking lights, acc). i would get the tach signal from behind the cluster. u can pick up a used cluster on ebay for real cheap. the tach on the 5g accord is already really huge. imo, monster tachs look really tacky