ive it didnt have a remote though, im just anal about having wires everywhere... i tapped it off my power for my radio.. so it only goes on when the car is on... (guess its the same for the clock)...
an easy way to get the wires from the top to the bottom without sticking your hand in there.. i used a hanger.. tied the wires to it. .and pulled it through..
total time it took me to complete the job was about 15-20 min.