Shock Sensor Not Working 100%

My alarm has a dual stage shock sensor.  It also has an input for a "Car Call" where you hook th 4 pin input into the alarm and then attach this circle thing to your window and when someone knocks on the circle thing you keychain alarm beeps. This circle thing also is where my LED was mounted. Anyway i didnt want the car call option but wanted an led so what i did was i spliced the wires. There was 4 of them red, black, green, and white. I figured out the white and green were the led wires so I instered the 4 pin input to the alarm with only the green and white wires connected to the 4 pin input (in other words i pulled out the metal things that cover the pins in the alarm where the input goes...i think i am making sense). Well my shock sensor has nothing to do with this input there is a seperate pin input for my shock sensor however after doing this my shock sensor no longer does the pre-warning beep when being bumped lightly it just goes to full alarm. I dont know why it is doing this...any suggestions??

2. Also i am going to add a radar sensor to the shock sensor and I saw the diagram on the forum about how to hook them up together using diodes but is it ok to splice the radar's 12 volt and ground wire with the shock sensor i mean can i hadle that much draw or should i use different sources. thanks