NancyA

PS, the surround systems are sold on Amazon and the installers, that refused to try another system, said that if I were to just power up another system without installing it, that would probably be enough to show if it would interfere, but like I said, they were not willing to take a chance on trying that technique.

I have a 2020 Sierra 1500. I wanted as surround camera but I did not want to pay $60,000 to get a truck that would have one from the factory. I was told by the sales staff that there was a local company that would install an aftermarket system for me. I went ahead and bought the truck I had been looking at and then took it to this shop in the first week I owned it. They needed to order the system, and that took a week. They had experience installing this system and a good relationship with the company they ordered it from. They installed it, which took them a day, but when they went to test and calibrate it, it interfered with the electronics in the truck, such as the tire pressure sensors. They had to take the whole thing out and refund my deposit. I suggested that I try to buy another brand and they said they would not try to install it for me even if I did. As I looked into it further, I found that although there are many after market brands, they are all based on some technology sold by one company in China so they would likely all have the same problem. In addition, that company that produced the technology apparently was no longer producing it so that when the inventory was sold, likely there would be no replacement parts, etc. The system was hard wired in, not wireless. I am really looking forward to having another solution available, hopefully wireless, and I keep looking. I have surround cameras on another vehicle and I swore I would never have another vehicle without it, but ironically, now I do. What I eventually did was install some cameras that are made for 18 wheel trucks on the front and the back and on both sides. The side ones are mounted on brackets on the leading edge of on my bed top so they stick out as far as my side mirrors. They are wireless cameras so I only needed to provide them power. They are a poor substitute as they are made to be up on the sides of a big rig trailer, not on a pickup truck, and thus do not have as wide an angle view as would be ideal, but for now they will have to do.

I was just looking at deep cycle lead acid batteries for use in boats, probably computer UPS units, etc., on Amazon There are a number of different shapes and Ah powers. They are expensive but could fit nicely behind the seat. They have terminal that are inset, so screw in. Also, with different shapes, a place might be found for them in the engine compartment. Perhaps two 6 volt in series could fit somewhere. I have been advised in the past for solar applications that if batteries are to be connected in series or parallel that they should both be of the same age, preferably bought new at the same time and equally charged before hitching them up.

I was recently at the dealership and mentioned a second battery to my service advisor as I was considering it. She said they were put behind the seat. Frankly, that sounds unlikely unless maybe two sealed 6 volt batteries were put in series behind the seat, but I thought I would mention it.