Your trolling motor may come with a Mega Side and Down Imaging (MSI), Mega Down Imaging (MDI), or a Universal Sonar 2 (US2) transducer built into the lower unit. The built-in transducer may interfere with mounting an external transducer, depending on the size of the external transducer. Also, having 2 transducers that close to each other, may cause interference.
Mounting the External Transducer
- Mount the External Transducer according to the directions provided with the transducer.
- Leave enough slack in the Transducer Cable between the Lower Unit and the Control Head to allow the motor to properly stow and deploy.
- Use 2 tie wrap cables to secure the Transducer Cable just above the Lift Assist Collar or Depth Collar and just below the Control Head.
- Run the Transducer Cable through the Coil Cord to the Fishfinder and/or power supply.