just so I got this right, You tapped into the Grey wire under the dash on the Grey connector.......you tied the red (power wires) into that wire and used the black wires as grounds on either side of the dash underneath. And this makes it so the lights just come on with the dome light correct?
2010 IOM SS/RS LS3, Hennessey HPE550 Polished Magnuson TVS2300 Supercharger. 3.6 Pulley. Kooks long tube headers / high flow cats. GHL Full exhaust. ZL1 Fuel Pump/ADM FPCM. MSW Bap. JRE ZL1 Race cam with new springs/pushrods/Trunion Upgrade. FIC 850cc injectors. ZR1 Map sensor. CAI Induction. JRE Tune.