I installed an FT-7100 in my truck last year. So far, I think it has been very functional and don't have any big issues. I may use screws in the trim, but so far I'm waiting until I fine tune locations. The mount for the control head is PVC, painted black. With various 90s and 45s, it follows the seat bracket pretty well. The speaker is mounted on the factory bracket with 3M double stick tape. I heated up the bottom end with a heat gun to flatten in out, then drilled a hole to use the seat bolt. My seat bolt was too short, so I used a grade 10.8 metric stud with a couple nuts - one to hold the seat, the other for the mount. A hose clamp adds some support, and does quite well. The top of the mount has a 1/4" nut epoxied inside a 45 elbow, and I fashioned a rough swivel with some angles and soldered some nuts on. The coupler is used only so I could remove the control head without having to fumble with the cable at the head. Purely optional. I used a microphone holder with 3M double stick tape on the trim. The main unit sits in the factory bracket, but I used 3/4" aluminum square tubing to raise it up. In this particular location, the front of the unit is too close to the carpet, blocking air flow below and helping to catch dirt, etc. Some stainless steel screws hold it down. The cable is ABR 240UF. The antenna is mounted on a stainless plate from an OPEK stake pocket antenna mount. Stainless hardware holds it to the bed. The rail cap is still stuck well to the rail, otherwise I would fit it underneath. I gave it just a little bend to make the mount horizontal, and use a UHF barrel connector with NMO adapter. I used braided cable to bond the hood, bed, and exhaust to the cab as well. All in all, I'm very satisfied. The few things I want to improve on: 1. Mount speaker in middle of my dash board (Dodge has an open spot for a radio speaker). 2. Use a Breedlove NMO/UHF antenna mount. 3. Bond antenna bracket to body better.