This unit came out of my truck and works great. It is a PAC AOEM-GM24 adapter. It will give you a set of front and rear RCA outputs withouth having to splice any wires. It will work with:

03-04 Avalanche (non-Bose and Bose)
02-04 Envoy SLE (non-Bose)
2004 H2
01-04 Montana (non-Bose and Bose)
00-04 Monte Carlo (non-Bose and Bose)
2003 S10
03-04 Savana (non-Bose and Bose)
03-04 Sierra (non-Bose and Bose)
03-04 Silverado (non-Bose and Bose)
03-04 Suburban (non-Bose and Bose)
03-04 Tahoe SLT (non-Bose and Bose)
03-04 Trail Blazer (non-Bose and Bose)
03-04 Venture (non-Bose and Bose)
03-04 Yukon SLT (non-Bose and Bose)

Visit www.pac-audio.com for details.

SOLD