Help! Electrical glitch???

[6t9 camaro]

I'm hoping someone might be able to shed some light on an electrical issue that has me stumped! I'm working on a 1968 camaro with a aaw wiring harness and it's about 90% installed. I just installed a dse wiper motor kit and when the key is turned on my wiper motor clicks but it still work perfectly.(not sure if it's supposed to click?) The main problem is when I flip the turn signals on the wiper motor clicks along with the signals? The dse wiper motor kit is very simple to install as it's just a power and ground but yet this has me stumped as to why it would click along with the signals??? Any tips or advise I will give a try!
Thanks