They would have to go through the same steps I listed. The advantage to taking it to a shop is they will have people who are good at soldering, but the disadvantage is this is not the type of thing they normally do so your car might sit on the back burner for a while until they have the time to work on it, OR, they are going to have to charge you for the mechanic's time to figure it out. At around 100 bucks per hour, you might be better off learning to do it yourself, assuming you have time to do that.
If you have a community college nearby, there are two possibilities. You might be able to enroll in just their automotive electrical class, or the students might take it on as a project. We were always looking for live work for the students to gain experience, but my class was only 8 weeks long, 22 hours per week, and we had all we could handle to get through the required stuff. That left us with just one week per year at the end of the course for things like this.
Some schools have night classes for anyone in the community to attend. There are no grades or homework. Just bring in your projects and have the instructor help you.
Caradiodoc
Monday, January 4th, 2021 AT 2:01 PM
(Merged)