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Relay or NPN Transistor? and One or 2 Power Sources?

C

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Clexxy

Joined Jul 12, 2014
1
In the attached JPG, I can't figure out how, once LED C, D, or E switch is closed (via reed-switch) then how to also activate the circuit that has LED-G and the speaker. I may only use one power source, but the circuit that has the LED-G and Speaker should not go above 12 volts total (9 for alarm and 3 for the LED). Otherwise, until one of those additional switches are activated, the usual power will be going through LED-A, and B when the system is activated and at normal status. Thanks for any help or criticism!
 

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