Wont start, have put in a new battery, no lights showing?

Hello,

Lets start with the basics.
Make sure the battery got installed is indeed a working battery and is not discharged.
If the battery you installed is defective then it will not provide power to the vehicle.

https://www.2carpros.com/articles/how-a-car-battery-works

Check the battery connection. Make sure that the cables are secure and does not have any corrosion. If they are corroded clean them. Dirty cables can prevent the battery from connecting.

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Also check the main fuse in the fuse box under the hood. It should be a 100A fuse. If its blown you may not have any power to the vehicle.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please let me know of any questions.
Thank you.