Just to throw my 2 cents worth in, I have just purchased the Sidescan unit to connect in with my HDS units. I read the instructions with the Sidescan unit last night after reading what was posted in this forum and see that Lowrance has recommended to connect the yellow wire to a separate switch to power the unit up. I am not sure why they recommend this as opposed to connecting the yellow wires from the head unit with the yellows from the sidescan. I currently have the LBS-1 Broadbander and NEP-1 Expansion port connected to my HDS head unit with all of the yellow wires connected together and everything powers up when I power up my head unit and everything powers down with the head unit. I would certainly recommend that everything be tied into a single accessories switch to make sure that everything is off when not being used. I disagree with the post that stated that if the yellow wire is not switched that the unit would be powered all of the time. The only way that could happen would be if the yellow and red wieres were tied together at the power source (battery). Without voltage present at the yellow wire, the unit would never turn on.

Ricky
I have some really good alum tape that you can use if you want instead of the alum foil and tape. It should do the same job but stick better. We use it to mask off sensitive areas when welding. You can get it at an automotive supply store but it is quite expensive. I think the standard rolls are about 2.5 or 3″ wide
Stevie o

I agree, that’s a good one too. I had never heard that one before
Steve

Yup, that was it. Thanks for the help
Steve