Rodent Anti-Chew Deterrent Tape – DNB & Capsaicin Infused Heavy Duty Wire Protection for Automotive, RV, Marine – World’s Bitterest Compound Professional Grade Barrier for Engine Wiring – 1in x 66ft

Don't know if it works but they make a capsaicin infused tape. https://a.co/d/08mP3oHG They also make wire looms that go around the wires. Just search for "rodent wire protection" A determined squirrel can chew through a brick house so nothing is squirrel proof. Just have to try and make it not worth their time.