Adding keyless entry to an older car

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Suburban Washington DC
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Wiring diagram: [Linked Image from fototime.com] Using the pink wire in the 5 pin connector to the negative terminal of the buzzer to make a chirp when locking and unlocking. Not using the horn or a relay. The other terminal to the buzzer is a constant 12V+. Do I need a fuse on that wire? Or I guess I could tap into an already fused circuit.
 
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24,603
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Upstate NY
The red wire needs a fuse or connected to a fused circuit. Most people get one of these that includes a remote start. Make sure all your connections are done properly. Solder is good. No wire nuts. Crimp connectors sealed with liquid tape.
 
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4,410
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Guilford, CT
^ +1. Yes, the buzzer needs to be fused. The red wire in the diagram needs to be fused anyway, so you can just tap into that wire to also feed the buzzer.
 
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