#8 in the diagram. When I swapped in new tweeters in '08 or '09 didn't think them sitting a little higher than stock would be an issue. Well, now the speaker grates have cracked, so I'm looking for another one with no damage or cracks. Just checking if someone is parting a TBSS out. I know it is used in other GM models, but local pull-a-part had about 20 TBs, Envoys, etc., but none with black (Ebony) interior.