My cd player keeps turning on and off. and dash clock light keeps dimming in and out and wont keep the time.

First is to adjust the dash lights which is on your light control. Should be a thumb toggle that you use to turn on your dome lights. All the way up will brighten your dash and clock lights. There should also be a setting in your menu on the clock/radio itself.

the dash dimmer turned down? i guess you mean parking lights and dash dimmer, is dead in clock. but is it dead in the whole dash?
if the dash is dimming and the clock dim lamp is dead (park) then its bad. (check fuses in all cases first)

yes it could very well keep it from starting get that fixed first

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

You don't say if it's "just" the dash lights, or if other lights do it as well. Try turning on a dome light and see if the dome light does it along with the dash lights. Do you notice your headlights doing this as well? These are just troubleshooting steps. If multiple light sources (dome, headlight, etc.) do it, then it's most likely a voltage regulator issue.

Sounds like your clock is dying. This is typically an issue with the clock itself. This is very common with many vehicles, CR-Vs, Pathfinders, 4runners, etc. The good news is that it can be repaired for a reasonable rate, check out www.autoclockrepair.com

sounds like its wired wrong .. there are three power inputs to the radio .. one is on all the time .. its for the clock only ... the second is from the panel lamp dimming circuit .. it turns on when the panel lights are on ... the third is the main power to the radio .. it is only on when the ignition is on or in accessory mode ..

turn your head lights on are they real bright? if not the battery might be low and you need a jump

Bad wire or light switch