Hi just bought a boat with the Azimuth 1000r compass with sensor there is also the SI-TEX fishfinder, SI-TEX Navadd 6000 Charting system and SI-TEX LCD Rader. I got the Fishfinder to power on and the Radar to power on. Ok I had to plug the Radar into the Navadd 6000 charting system to power it...