I stopped by an older friends house this morning to share some of the fish I caught last week. Long story short he gave me a Hummingbird 300TX, no mounting brackets power cable or transducer. My question to ya'll is do you know where I might find these parts or are they going to be as expensive as a new unit? I have a Garmin on the trolling motor on the bow, just thought it would be nice to have to have a depth finder on the stern. Thanks in advance for any information or advice.