what seems to be the problem?

ok here is the deal I went to put a system in my 2002 this morning (I have a stock radio I’m using a line out converter, if that makes a difference)anyway I go to start the car but the only thing that happened was my cluster went on it lit up and showed me how much gas I had and the message center was on but my voltage wasn’t showing anything I couldn’t lock or unlock my doors (using the power lock) also I couldn’t unlock my trunk keep in mind my car is in ACC at this point also I could put it in gear without pushing in the brake. I have no clue what this could be I checked all fuses and they were ok.i also checked the codes and nothing showed up.and yes the battery is fully charged.

ok here is the deal I went to put a system in my 2002 this morning (I have a stock radio I’m using a line out converter, if that makes a difference)anyway I go to start the car but the only thing that happened was my cluster went on it lit up and showed me how much gas I had and the message center was on but my voltage wasn’t showing anything I couldn’t lock or unlock my doors (using the power lock) also I couldn’t unlock my trunk keep in mind my car is in ACC at this point also I could put it in gear without pushing in the brake. I have no clue what this could be I checked all fuses and they were ok.i also checked the codes and nothing showed up.and yes the battery is fully charged.

This is in the wrong forum but it sounds like your alternator is going bad.