I had mine professionally done. They first did a good clean/polish followed by gtechniq ultra ceramic coating for about $1000. Extremely pleased with performance at just short of a year. Supposed to be good for at least 5 years. Water beads up and rolls off amazingly well. I chose to have...
I used this switch from amazon.
https://www.amazon.com/dp/B093DX745M/ref=cm_sw_r_apan_glt_i_TZ9J6KQE2WP4CDB5QTX7?_encoding=UTF8&psc=1
For the box, I had an old broken ac adapter that I took the insides out and made some holes.
16 Guage wire. 4 strands through the firewall. 2 to the speaker...
First of all I would like to thank @WillB17 . I too was annoyed with the pedestrian backup beeper, especially in campgrounds. I decided to go one step further because I wanted to still have the backup beeper easily available. Using the part numbers WillB17 provided and doing some additional...