I am attempting to connect both an old powerswitch tail (PS tail) and a 3.2 TFT display (TFT_320QVT_9341) to an Arduino. I am using a shield (very similar to https://www.ebay.com/i/381638696020?chn=ps&dispItem=1) to connect the TFT screen to the Arduino. This shield takes up the 5V and both GND spots. The PS tail needs a 5V and GND in addition to the signal which I don't have an issue with.
Would it be wise to solder to the pins on the shield in order to get 5V and GND to the PS tail? Alternatively, I could create wire loops around the pins and achieve the same effect. This would all need to be done carefully so that the wires do not touch. Would there perhaps be a better way to set this up?