Radio wont come on

Hello Al,

Does your dash display a flashing "service soon" indicator?
Have you checked for fault codes?

You have a good battery, your ignition switch is powering up the vehicles dash board and the vehicle will start and operate normally....?

Any lights on the radio display?
Check for 12 volts on the radio power lead...no power? check for 12 volts across the accessory / radio position in the fuse box. No power but fuse is good...wiring issue in the harness.

Power across fused circuit no power to radio check radio's in line fuse...fuse good? ... radio bad or disconnected speaker wires.

Make sure all your vehicles grounding positions are clean and tight.

When you say your door locks don't work are your talking about the switch on the door or the remote fob?

Check your owners manual to check for any radio reset info.

there is another fuse at the back of the radio , will need to remove the radio to replace the fuse

did you check the fuse

Sounds like the wire you used for power was oon the circut for all those other things, or if you pulled the fuse box down to hook radio up through the fuse box, you may have grounded out some wires, or knocked them loose. Use a test light or voltmeter and make sure you have power at the fuse box for wiper,dashlight, trunk release, door lock fuses.

Check fuse box, you might have fried the radio fuse when you installed the battery incorrectly.Some radios have a fuse attached to the back of the radio chassis. You may need to take radio out and check it, good luck.

Yes it could be a blown fuse most of the time but check the fuse marked radio in the fuse box

when you replaced the battery it was very possible that you may have blown a fuse. Check your fuses for your radio and your cig lighter.

This may sound silly but place the actual key in the drivers door and cycle locked and unlock this should reset the security system.

If you have recently changed the battery or lost power for any reason your radio may require an anti theft code, check your manual to see if this even applies to your vehicle. You may be able to find code behind the glove box in some cases. Or look up your vehicle online to see if any codes are posted. If the clock is working you have power.

There is a panel on the passengers side of the car, I pulled the fuse used for OnStar because I dont use it. I didn see any labling on mine but it was the fuse located second from the top on the left side, but you have to be looking at it side ways because of the way the fuse box is orientated.
And then put it in the socket all the way to the right second from the bottom, again looking at it sideways. NOTE: My car is a 2006 Malibu LT