I have replaced the factory head unit with an after market one (Alpine) in my Honda Civic 2003 GLi and everything works fine except now my central locking doesn't work and also when my head lights are left on after the key has been taken out, it doesn't beep any more. I have check both sets of fuses (under bonnet and under steering wheel) and they are all ok.

I have read that in order to keep central locking on honda civic you need to keep the old unit connected :S (http://lonewolfonline.net/honda-civi...adio-headunit/). Can anyone clarify this?

Can any one please help?