Hey fellows, im new here. But i just bought an 06 balt lt with the pioneer system. Anyway i was listening to music going down the road and realized the rear 6x9s and sub were not working. The tweeters and door speakers work just fine. So i tore into the unit. (it is a Kenwood DPX500BT) and it looked like the previous owner had hooked up everything correctly with a PAC C2R GM11B chime kit. But i guess what im asking is where should i start first? Maybe something in the amp?