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Bought this kit on Ebay and got no idea how to install it. I've look at the schematics and getting confused.

Have anyone installed this before ?
Im not going to take it to the shop and spend a few hundreds to install it.
This unit cost $35.
I just need a basic alarm system since have lost a tag and broken tail light from neighborhood kids/vandals. So with this one, it should beep and woot like hell which would scare them away.

Thanks

 

Anyone ??? its this week=========>