whether you are an RV owner you may be concerned about GPS signals not getting into your cabin depending on where you want to place the device. Well Lowrance has you covered with their iWAY 600C RV which boasts a 5″ display. iWAY 600C RV is pretty much the same as their successful 600C version - only with an external GPS antenna so you can place it on top of your RV for best signal reception.

• Satellite imagery for major metro areas in
  the USA and Canada
• 30GB hard drive preloaded with NAVTEQ maps of USA and Canada with by 5.5 million Points-Of-Interest
• MP3 music player and JPEG picture viewer
• Full-spectrum FM transmitter, with auto-muting during voice turn directions
• External remote antenna
• Quick-release suction cup mount

It is hard to find that RV version online - but the regular iWAY 600C is available on Amazon for $630.

Original post by Tim Robbins