Just installed a. Lowrance Elite 5 unit. This has the rear transducer that we mounted behind the boat. Also order a Tallon mount for the dash so the unit can easily be removed when needed.
I just added 2 pairs of JL Audio MX 650's to the Challenger last week and let me say it's the best $179 per pair that I've spent.
The units were plug and play with the factory wiring and the improvement in sound was night and day over the clarion factory speakers. With the factory head unit the sound was so much clearer and louder.
Here are a few pics. The JL 4 channel amp is going in this week. Can't wait to hear it after that.....