I want to develop an external Flasher for a desk phone. So I installed an aux port in the side of it. I want a way to take this aux signal and close a relay somehow. I have a light that is powered by 24v dc so that is probably my target voltage for the relay. but I need a low trigger voltage. I cant seem to confidently find any parts that do this (I am not really even an amateur at this yet). I thought [this amplifier and [this relay would work but I am not sure.
Does spark fun have a simple solution to this or could you help me in my endeavor to create one?](https://www.digikey.com/product-detail/en/panasonic-electric-works/AQY282EH/255-2695-ND/646349?utm_adgroup=Solid%20State%20Relays&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Relays_NEW&utm_term=&utm_content=Solid%20State%20Relays&gclid=EAIaIQobChMIv5GI_bDA6QIV0cDACh05oAgnEAQYASABEgLcIPD_BwE)](Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302 : ID 2130 : Adafruit Industries, Unique & fun DIY electronics and kits)