LM-300HD-EXT Low Vibration Seat Bolt Mount With Microphone Holder For Icom IC-706 IC-7000 IC-7100 IC-2820 ID-880 ID-4100

This is our low vibration seat bolt mount. It will hold heavier control heads with little movement. It can also can be folded out of the way to accomodate passengers.

The package includes the EXT-01 extension plate and our LM-1201 mic holder and a 1/4 X 20 stud that can be treaded into your Icom bracket. Please note you will need the Icom remote head bracket for this mount to work for you. If you have an IC-706 you will need the MB-63, The IC-7000 you will need the MB-105, ID-4100 you will need the MB-8. If you have a IC-2820 or ID-880 the remote head bracket is included with those radios.

If you are looking for a sturdy mount with less vibration that the standard LM-300 then this mount if for you.


  • Compatible with devices and holders having a 4-Hole AMPS pattern (sold separately)
  • Recommended for fleets and service vehicles
  • Adjustable arm and swivel ball help position device
  • Easy to install
  • 2 year limited warranty


The LM-300HD mounting pedestal can be used as a replacement, upgrade, or as an addition to an existing pedestal with a 4-Hole AMPS drill-base pattern. It is  compatible with devices having a 4-Hole AMPS pattern, including vehicle-specific mounts (VSMs), cameras, GPS devices, audio/video receivers, or satellite radios including Sirius S50, Sirius XM Onyx Plus, XM Onyx EZ, Sirius XM Lynx, Stratus 7, Dock & Play, and Sirius Dock & Play (sold separately). The car seat rail mount is made of strong aluminum, and is ideal for those who need easy access to their iPad, iPhone or other device but prefer mounting it somewhere other than the windshield or dashboard. In addition to cars and trucks, this pedestal is recommended for fleets and service vehicles. Multiple brackets are included for various seat rail configurations. Use a socket wrench to install the mount to the car’s seat rail. Loosen the passenger seat track bolt, insert the included seat track bolt bracket, and then retighten the bolt. Bend the 22” adjustable arm and rotate the swivel ball adapter head for 360-degree rotation for exact positioning of the device.