i was just wondering if anyone had a wiring diagrahm for a 99 sierra particularly the under hood wiring or maybe better a complete diagrahm for a sle 4x4 with a 5.3 lm7 thanx for your help in advance e-mail apollolt1@msn.com

I have a Chilton manual that has the wiring diagrams in the back. I bought mine at an O'Rielly's but I would expect any of the major chains to carry them. Also check the local library. They usually carry these books.