The parking lights? The headlights? The dashboard lights? Why not the tail light circuit? They are on with either park lights or headlights. And you probably don't need a relay but it wouldn't hurt anything if you use one.

Last edited by cletis; 11/21/2009 7:22 PM.
"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.