Radio does not work

Check fuses and maybe disconnect battery to reset. Wait about 10 min. If its a aftermarket radio may have a fuse on back of radio itself worth a check as well.

Hi Jessica, Some car radios "lock" themselves off when the power (from your car battery) is interrupted. This is done as a theft deterrent measure since it renders the radio unusable/worthless to a thief. To "unlock" the radio after a power interruption, the owner must enter a code into the radio (using the station preset buttons usually) in order to make it work. The code is generally provided in your user manual for the car and/or car radio. If you don't have the manual(s) you'll have to google using the car make/model and/or radio make/model to find the code to enter. Once the code is entered per the manual instructions, your radio should work fine. However, if the radio isn't simply "locked" but actually doesn't show any signs of life in any way, then it's possible the fuse for the circuit that includes the radio blew when the battery was being connected. The location of your fuse panel should be in your manual... it's often under the dash on under the hood near the firewall (close to the passenger cabin). There's usually a little diagram nearby (or under the fuse cover or door) showing which fuse is for which circuit... check it to see exactly which fuse covers the radio. The fuses look like little rectangular colored plastic blocks... remove the radio fuse by gently but firmly pulling it straight out of the fuse panel (some cars have a little plastic puller tool nearby, along with some spare fuses that makes removing a fuse easier). Hold the fuse up to the light... it has two metal prongs connected by a wire visible inside. If the wire is intact (not broken, like the filament in a burned-out incandescent light bulb) then the problem lies elsewhere. If the fuse has blown, the wire inside the plastic will be separated... there will be a gap where the wire burnt out. Replace the bad fuse with a good new one of the exact same amperage/color by inserting it all the way into the correct socket (where the old fuse came from). If you don't have a replacement fuse of the necessary value (i.e.: "5A" or "10A" etc...) you can get them at any auto parts store (they're just a few dollars for an assortment). Once a new, good fuse is back in place, the radio (and anything else that shares that same circuit) should have power now (though you still might have to do the code reactivation thing). If it's not a theft-prevention code that needs to be entered, and not the fuse for the radio, then the problem is something else. There's more that can be tried, but at that point, you might want to take the car to a mechanic or auto electrical shop. Best of luck. :-) -Scott