Gaminglaboratory

Dear community, I am trying to get my NTC100K working on my Ultimaker 2. The problem is that I don't have any idea whether this is even possible with this temperature sensor and if so, how to do it. I spent a whole day trying to read through different forums and trying to get it to work, but until now without success. What I know is that I need to flash the marlin software on it, with a different setting for the TEMP_SENSOR. Or so I think at least. I tried using #define TEMP_SENSOR_0 8, because "8" is at least a NTC sensor (it says: 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)). But then I don't know where to connect the sensor on the motherboard and I don't know where to place the 4.7k pullup. Do I connect the sensor to where the Pt100 was before or do I have to connect it somewhere else? And in general, what exactly do I need to do, to get the sensor running, if even possible. I am using the anycubic vyper v5 J-head hotend and its sensor. I hope its not a dumb question. Thank you in advance for your help.