Actually the clock and the radio don't work after I installed a new radio .
Which fuses can I check?

 

check fuse 21 under the dashboard. either 21 or 22, one of those

 

I had the same problem the other day. It's a 7.5 fuse way up at the top of all the fuses.

 

My clock and radio dont work either. The fuses all the fuses are fine. The radio only works sometimes so i think that the clock is messed up and the radio is on its way out too.

 

I'm having the same problem, radio nor clock will turn on, and the antenna won't go down, it sounds as if the motor is trying to grasp the antenna but it can't get it....is there any fix for this? Maybe a guide?

 

may need a new antenna mast. I recently had to buy one on ebay cause the plastic strip that drives the antenna up and down broke.

 

So its many moons later and my 99 maxima has the same issue, my right top (trunk) fuse keeps falling out, its the only one loose, but I've changed every fuse and clock is still dead, has been since I took over this car about 7 years ago now. I've been overhauling the lil engine that could over the past year and she's practically brand new, but the clock is mocking me. I have a new one on the way, hopefully that fixes it. Next project instrument cluster screws need tightened so the guage doesn't drop power while driving. I love this car though, even in 2021.

 

Somewhere in the org there are instructions about
re-soldering a few contacts on the rear circuit board of the clock.

My clock quit working. So I followed the instructions and fixed the clock with my soldering iron.
it still works several years later.