One of my pickup's wires is pretty short, I've had to splice in wire. After soldering the wires together I've usually wrapped the splice solder point with electrical tape. I also got some of this
Kkrogtp Liquid Tape, Liquid Electrical Tape, Liquid Insulating Rubber Coat, Waterproof Insulating Fix Dry Waterproof Electrical Liquid Tape (Black,260ML) - Yahoo Shopping
18 DIY Fixes for Broken Electrical Items at Home
Gardner Bender Black Liquid Electrical Tape 4 oz. LTB-400 - The Home Depot
Liquid Electrical Tape Insulating Tape Repair Rubber - Temu
Permatex® Liquid Electrical Tape, 118-mL
Permatex® Liquid Electrical Tape, 118-mL
Kkrogtp Liquid Tape, Liquid Electrical Tape, Liquid Insulating Rubber Coat, Waterproof Insulating Fix Dry Waterproof Electrical Liquid Tape (Black,260ML) - Yahoo Shopping
Liquid tape for pickup wire repair
Gardner Bender ECM HTP-1010CLR 1 By 10 Clear Repair Tape: Electrical Friction & Rubber Tape & Liquid Tape (032076916121-2)
4 Oz Bottle, Red LTR-400 Liquid Tape, Home/Auto/Marine/Electric Applications, Indoor/Outdoor Use, Brush On, Repair/Seal/Insulate & Protect, 4 Fl Oz
Liquid Insulating Tape Repair Rubber Electrical Wire Cable Coat Fix Line Glue
Small cut in the power cable (internal wires all okay) nothing a little liquid electrical tape can't fix : r/wii
Liquid Electrical Tape, sort of OT - Page 2 - Ford Truck Enthusiasts Forums