Thanks everyone. The fishfinder came in right before I left for work this evening. Wife had no idea that I would actually receive it on my birthday. Going to try and put it on Friday. I got the HB 698 SI. Would have liked a wider screen but very limited on space. Guess I could have waited a few months and checked out the new Helix units coming out around the 1st of the year. Just wanted one now. It does have slot for the map card James, I am going to try and get one before Darbonne. If not then as soon as possible.