I bought a used truck, to my surprise there was evidence of a radio install. The hole needed for the power supply was already there, I used a magnetic mount antenna and ran the wire down the weather stripping into the cab on the passenger side up in the dash over to the radio. When I search for some install advice on this truck people had commented on factory holes of possible use, looking for those helped me find the previous owners. I didn't skimp on the few items needed and took the time needed for a professional install. Even if removed you'd have to know what to look for to see any damage caused. I never mounted a handheld bracket, that would always be evident if removed. Dash has a niche, I use that.
The antenna is the 30 inchish one with a spring in the middle, it does what it claims and gives when it comes in contact with obstructions...I live in a woods, it's always growing, always trying to reclaim control. lol