well It’s a bit complicated because i did the swap and also running with simple digital systems and it makes it that I made all my own harness but I have a couple of things missing wires because i don’t know much about the srt4...Thanks for replying
starter wiring is pretty basic. Having the battery in the trunk doesnt complicate it either. The starter wiring that is original to the car should work, though you may need to extend some wires if you need more length. Essentially, just like any other car, your ignition switch (key switch) activates the starter relay, which then sends power to the starter to make it spin.