my battery light comes on when i hit a bump in the road and the radio go off then back on
Bad connection at the battery. Go through the wire harness and make sure the terminal connections are good.
I agree, it sounds wiring related, and it is an 05 so you have to be careful with power connections or you could corrupt the base programming in the BCM and loose all the accessories. I suggest getting a saver tool and plug it in before performing any wiring work. There are two kinds out there, one is simple and uses a 9 volt battery and plug into the lighter or power port, that one has very limited time to perform work, the other plugs directly into,the OBD2 port and uses an auxiliary 12 volt power source, so an extra car battery or a jump box can be used. So be careful and good luck.
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