With key on engine off my car makes a constant ringing sound that I cannot locate. I am having a no start condition I had a P0335 code and replaced the crankshaft position sensor and it still doesn't start. Does anyone else's car make this noise when the key is on the acc position?
Could it be related to my no start?

 

Definitely a problem, sounds like some kind of coil hum. You need to isolate what's actually causing the issue, I SUSPECT it's a bad starter and that's where the hum is coming from. If it were me I'd pull the starter and bench test it to verify it's working.

It's also definitely possible that it's coming from that replacement CKP sensor, did you use a Genuine Nissan OEM or a Hitachi sensor, aftermarket brand CKP's are notoriously bad and it's common to get one that won't work right out of the box. There is a coil winding inside the CKP so it's possible for it to make that sound as well even though I've never personally heard it happen before.

If the sound was present before you replaced the sensor then it's likely coming from somewhere else though, the other possible culprits would be the coil packs, the ABS relay, etc.

 

my throttle body rings like that.