PIE COR-HAR 1997-2004 Corvette CD Changer Wiring Harness
Bought this with a GM10 (http://www.amazon.com/gp/product/B000CK5M7Y/ref=cm_cr_ryp_prd_ttl_sol_2) so I could add a aux input to my factory radio (keeping stock dash in tact). Very easy. I used a bluetooth adapter and now can play tunes wirelessly from my Droid to the C5! Perfect.