I will be helping a friend install a V4 Hansshow trunk kit soon so I should be able to provide some additional comparison on the Hansshow V4 vs TeslaOffer Mk2.5 trunk kit. I've watched the Hansshow install video and was a bit surprised it requires joining bare wires together. In the video, they simply twisted the wires together and used electrical tape. My plan is solder and heat-shrink to ensure a long-lasting connection. The video made me appreciate that the TeslaOffer kit doesn't need any bare wires connected together but I will be in a better position to offer comparative comments after the install.