2007 Jeep wont start

Hello,
I have a 2007 wrangler i was putting a new radio in yesterday, i had started it once when i was doing it after i finished the install, it wouldnt start, all the lights and gauges work, but when i turn the key to start the engine all the dash lights go off and the gauges go down, the starter dosent turn over i tried a new battery same results, i tried putting the transmission in nutral (automatic) does any one have any ideas on what this could be... thanks

Sounds like a battery, i never trust just putting a new battery in. Did you know for sure the batt was good? Did you try to Jump it? When you did the install did you use the adapter wiring harness? I know it is expensive but I also know if you do not use it you can have all kinds of problems.

Check to make sure that you didn't unhook the ground for the ignition circuit or to the ECM. Stereo wires tend to run along the same. The wire your looking for is from the ignition switch or after it in a splice. That will most likely be the cause if your battery is okay.

it could be a number of things. Check your relays. they can go out really easy. I have replaced the radio in my 2007 jeep twice so far and i'm going to be doinmg it again here ina couple of weeks since my radio was stolen again. But anyways, check the relays and of course be sure the batt is good. Also check the wires on your starter. I just replaced mine about 4 months ago because the wire connecting the bendix to the motor was corroded and broke. I had to use the old flat tip trick to start my jeep for a couple days until the new starter came in. Hope this helps a little. Good luck