The alarm on my 04 accord lx coupe wont start when I lock it and I open the trunk or open the doors. The lights work fine, the horn is fine, I have to click it twice for it to beep instead of once. Any idea what it would be?

 

You always click it once to activate the alarm and twice for the horn unless you have an aftermarket installed.

 

I do have an aftermarket alarm. Any idea what it could be?