looking to get a gps fishfinder combo. i need one that has a tranducer that mounts inside the boat and sends the sonar through the haul. I dont need the most detailed unit out there, just need something to safetly get me there and back, and be able to store the common fishing spots and marinas, and be able to be seen well at night. i dont want to spend a ton of money but dont want to be cheap either. I dont have a ton of space on my dash either so size is somewhat needed to be in the facture too. I know lots of ppl have used many models just wonder what some ppl might sujest me to look for as needed option or actual unit they use or have used that fits what i am looking for.