I have a 2002 Dodge Ram 1500 and just replaced the factory radio but after wiring it up I realized that I didn't use the dimmer wire from the truck. Now when I shut the truck off my lights go off(even if the switch is on) when they used to stay on for a min or so. And when I open my door to get in my interior light does not come on until I turn the key to the acc position Help me please

Crowder, how did you wire the stereo?
Did you run all the wires straight to the fuse-box, or did you splice into the factory feeds?
You need to find a wiring schematic of what all feeds through the stereo system.
Make sure that your connections at the fuse block do not have any "bleed-over" from one circuit to another.
You can contact Crutchfield(.com); they have connectors that adapt to most all vehicles from the factory connector out. Heck, some are as simple as "plug-and-play".
Hope this helps...