What Are Car Alarm Sensors and How Do They Work?

3
Drill through the firewall. You can avoid this step if you run a wire from the car alarm to the siren through an already existing hole in the firewall. It often works well to run the wire alongside the heater core hoses, an amp power wire, ignition power source, or any other lead going to the other side of the firewall. If there are none conveniently located, you will have to make one. If you have to make a new hole, be sure to look on both sides of the firewall to ensure that the spot you’d like to drill is safe. As long as the drill will not hit any other parts, it should be fine to drill there.
3
Xavfsizlik devori orqali burg'ulash. Agar siz xavfsizlik devoridagi mavjud teshik orqali avtomobil signalidan sirenaga sim o'tkazsangiz, bu qadamdan qochishingiz mumkin. Ko'pincha simni isitgichning asosiy shlanglari, kuchaytirgich quvvat simlari, ateşleme quvvat manbai yoki xavfsizlik devorining boshqa tomoniga o'tadigan boshqa simlar bilan birga o'tkazish yaxshi ishlaydi. Agar qulay joy bo'lmasa, siz uni qilishingiz kerak bo'ladi. Agar siz yangi teshik ochishingiz kerak bo'lsa, burg'ilashni xohlagan joy xavfsiz ekanligiga ishonch hosil qilish uchun xavfsizlik devorining ikkala tomoniga qarang. Matkap boshqa qismlarga tegmasa, u erda burg'ulash yaxshi bo'lishi kerak.
4
Run a wire through the firewall. This wire will connect the car alarm to the siren.

• 
  It is important that you insulate this wire with a rubber boot or fill the hole with silicon. This keeps the wire from being damaged by friction with the firewall and shorting out. You should also aim to put the wire somewhere that it will not be kicked or tugged by yourself or your passengers for the same reasons.[4]
  

4
Xavfsizlik devori orqali simni o'tkazing. Ushbu sim avtomobil signalini sirenaga ulaydi.
Ushbu simni rezina etik bilan izolyatsiya qilishingiz yoki teshikni silikon bilan to'ldirishingiz muhimdir. Bu simni xavfsizlik devori bilan ishqalanishdan va qisqa tutashuvdan himoya qiladi. Shuningdek, simni xuddi shu sabablarga ko'ra o'zingiz yoki yo'lovchilaringiz tepib yoki tortib ololmaydigan joyga qo'yishingiz kerak.[4]