’03 kia optima, remote start, door locks

lol - figures....i can do mostly anything, but soldering is my enemy

110% with Kreg here. In fact in the UK we are only allowed to solder the joints, at one time we even had to use the crimp ring connectors that you heated after! I even import Scotch 33+! Read Kreg's bye-line and go to the General Discussion section where the pros and cons of different connection methods are discussed, you may not be too surprised the all the pros have the same idea...solder!

P.S. If I remember correctly there are even how to instructions but the two main tricks are to heat the wire first then let the solder flow. Result, a nice shiny low resistance "wet" joint

Just takes a little practice and a decent soldering gun or iron.    I use an old WEN Model 199K soldering gun that has dual range, 100 and 140 watt, unless the location is very tight.   Howard uses a high tech butane iron.  There are some "How to" posts with more info on the forum.

Most of professionals do the entire install with the battery connected.  Just have to be careful with the +12v constant wires.

Soldering is fun!

you guys are very helpful - thanks a lot