Well, ............. think I finally got the first one hooked up per the instructions that came with it! Could never figure out how to hook it to the F on the aldl. Guess it uses a wireless connection since it uses an antenna. Tried tuning the cars radio to 88.1FM to see if that would help, still just kept getting static. Decided to return the second one since I don't think I will be on the water that often!