I’m hooking up running board light with a coutise light

Contact the maker for support. It sounds like they are faulty.

that power circuit is most probably connected to the tail/clearance lights circuit so find a good accessible spot and piggy back those wires in to the harness there

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced.

Need power board. Unplug then Have to remove all screws on back. The big board that the plug goes to is power board. Get serial number and find on Amazon or Internet. Usually around 150$ replace. It is easier than sounds. Any time power will not stay on or will not come on it is the power board. Tics are now just like computers. If u can change a hard drive u can do this

sounds like the avi board and graphic control is not working they are usually on the same power line on the main board. can you try the menu setting see if they come up on there avi ext1 etc.

you can connect them to your running lights,they just need to run off any power.doesnt matter where you get it from,but if you want them to come on with the lights thats what i would do.un less you power a switch an run the running boards from the switch.just more work that way,also you have to hit the switch everytime at night.

unhook battey for a half hour then hook back up

If your CD player works hooked up to the DJ board, then try hooking the line out of the board into a auxiliary in or line in in or record in on your receiver using the appropriate cables.Try the CD in first and if there is too much signal then use the CD/Tape in. You need to match the output signal of your board to the input signal of your amp. Hope this helps.

There were two runs of parts on this model, one using a powersupply board that included the inverter and one with a separate inverter. The red standby light failure was typical with the second run with the all in one power supply board. You can tell if you have the second run by opening the back. If the power supply board says proview and is black then you need to replace the board underneath it. The main board. This model also had a MASSIVE factory defect. If you hook up the VGA model, pin nine on the control box lead shorts out and it goes into limbo like you have now. So, replace your mainboard and Fill the vga input with hotglue. That should get you back and kicking again. Try shopjimmy.com or ebay for parts.
Good luck

hook one wire to the hum screw on the board if there is not a hum screw hook it to the green screw,go up to the humidifier then back down to the common screw on the board that should make the unit only come on when the fan is running. it sounds like the humidistat is not working correctly