not trying to start an arguement, but how exactly do you expect to be able to shrink wrap when connecting to a wire (without cutting the plug off). If the proper tape is used (ie Super33), it can withstand any bit of heat a vehicle can throw at it and work just fine for years and years. I agree that every wire should be soldered, but in my 3 years of installing, I have NEVER had a single wire connection problem with any of my non-soldered connections. however, I have had 2 connection problems with soldered wires. One of which was my own vehicle, where the wire itself physically broke in half at the edge of the solder joint. The other connection basically fell apart almost like a cold solder joint, but the joint was fine for almost 2 years without a problem... which you dont usually find with a cold solder connection. So personally, I trust my own non-soldered connections over a soldered connection... even though I do agree that solder is one of the best options. I do not agree with the shrink tubing... there are some instances in which shrink tubing cannot be used.

I have work for both of the companies and have seen my fair share of half a$$ installers. both companies want a car in and out. For my shop at CC I run it and I have all my employees basic and advanced certified to work for me. And I allow them to time limits on cars. Do it right the first time and dont do it again. And if you don't know how to do it, than dont.

not trying to start an arguement, but how exactly do you expect to be able to shrink wrap when connecting to a wire (without cutting the plug off). If the proper tape is used (ie Super33), it can withstand any bit of heat a vehicle can throw at it and work just fine for years and years. I agree that every wire should be soldered, but in my 3 years of installing, I have NEVER had a single wire connection problem with any of my non-soldered connections. however, I have had 2 connection problems with soldered wires. One of which was my own vehicle, where the wire itself physically broke in half at the edge of the solder joint. The other connection basically fell apart almost like a cold solder joint, but the joint was fine for almost 2 years without a problem... which you dont usually find with a cold solder connection. So personally, I trust my own non-soldered connections over a soldered connection... even though I do agree that solder is one of the best options. I do not agree with the shrink tubing... there are some instances in which shrink tubing cannot be used.

very respectable answer