My dash lights and my radio stop workin when i was installing a new radio, how can i fix this?

check dimmer rheostat switch and could be faulty headlight switch
all lights out at same time prob not bulbs

installed new radio n now my dash lights stay on even when key isnt in the ignition.

if youve replaced all fuses and radio not working the impact could have losened conections to radio. pull radio and check conections/leads if ok have radio checked out

Hello alex 10299
Try a new flasher. The flasher is located in the power distribution ctr. under the radio behind the center of the dash. Hope this is helpful.

Your old radio had at least 2 power wires, some had 3. One of them stays hot all the time for the clock and radio presets, the second is hot when the key is turned on. And the third is hot when your dash lights are on. If you get these mixed up when replacing the radio, you will have this problem. Most of the dash lights on a GM are under the taillight fuse. I would check them all with a test light. Make sure you are not powering your radio from this circuit. You don't want to dim your radio.

check your fuse for the instrument lights youmay have blown it when intsalling new radio. if it is blown replace with same amp fuse if it blows again pull out the radio and see if you left a wire bare

try unplugging the transmission range selector on the side of the trans and see if yur radio works properly after that,i know this sounds weird but give it a shot,i have seen these switches keep radios and windows from workin on taurus's and windstars,hope this helps

I had the same issue with my wife's 01 beetle and it ended up being a bad alternator.

Most factory stereos are wired to the dash dimmer switch. Usually if the dash lights go out after an after market stereo installation, it is because the wire that originally went to the factory stereo is not used for after market stereos. Double check the fuses and ensure the wire that controlled the lights on the factory stereo is not grounding out on something.

i shoul not afect any thing unless you replace the batterie with the car runing, and some radios have antitheft code if batterie die or disconect the radio will ask you to type a code in order to work again but most of times it display the worl code on the digital screen